Bump pygments from 2.6.1 to 2.7.4

Bumps [pygments](https://github.com/pygments/pygments) from 2.6.1 to 2.7.4.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](pygments/pygments@2.6.1...2.7.4)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements.txt

@@ -4,105 +4,298 @@
 #
 #    pip-compile --no-emit-index-url --output-file=requirements.txt requirements.in
 #
-alembic==1.4.2            # via apache-airflow
-apache-airflow==1.10.11   # via -r requirements.in
-apispec[yaml]==1.3.3      # via flask-appbuilder
-argcomplete==1.11.1       # via apache-airflow
-attrs==19.3.0             # via apache-airflow, cattrs, jsonschema
-babel==2.8.0              # via flask-babel
-cached-property==1.5.1    # via apache-airflow
-cachetools==4.1.1         # via google-auth
-cattrs==1.0.0             # via apache-airflow
-certifi==2020.4.5.2       # via requests
-chardet==3.0.4            # via requests
-click==7.1.2              # via flask, flask-appbuilder
-colorama==0.4.3           # via flask-appbuilder
-colorlog==4.0.2           # via apache-airflow
-configparser==3.5.3       # via apache-airflow
-croniter==0.3.32          # via apache-airflow
-defusedxml==0.6.0         # via python3-openid
-dill==0.3.1.1             # via apache-airflow
-dnspython==1.16.0         # via email-validator
-docutils==0.16            # via python-daemon
-email-validator==1.1.1    # via apache-airflow, flask-appbuilder
-flask-admin==1.5.4        # via apache-airflow
-flask-appbuilder==2.3.4   # via apache-airflow
-flask-babel==1.0.0        # via flask-appbuilder
-flask-caching==1.3.3      # via apache-airflow
-flask-jwt-extended==3.24.1  # via flask-appbuilder
-flask-login==0.4.1        # via apache-airflow, flask-appbuilder
-flask-openid==1.2.5       # via flask-appbuilder
-flask-sqlalchemy==2.4.3   # via flask-appbuilder
-flask-swagger==0.2.13     # via apache-airflow
-flask-wtf==0.14.3         # via apache-airflow, flask-appbuilder
-flask==1.1.2              # via apache-airflow, flask-admin, flask-appbuilder, flask-babel, flask-caching, flask-jwt-extended, flask-login, flask-openid, flask-sqlalchemy, flask-swagger, flask-wtf
-funcsigs==1.0.2           # via apache-airflow
-future==0.18.2            # via apache-airflow
-google-api-core==1.21.0   # via google-cloud-core
-google-auth==1.19.1       # via -r requirements.in, google-api-core, google-cloud-storage
-google-cloud-core==1.3.0  # via google-cloud-storage
-google-cloud-storage==1.29.0  # via -r requirements.in
-google-resumable-media==0.5.1  # via google-cloud-storage
-googleapis-common-protos==1.52.0  # via google-api-core
-graphviz==0.14            # via apache-airflow
-gunicorn==19.10.0         # via apache-airflow
-idna==2.9                 # via email-validator, requests
-importlib-metadata==1.7.0  # via argcomplete, jsonschema
-iso8601==0.1.12           # via apache-airflow
-itsdangerous==1.1.0       # via flask, flask-wtf
-jinja2==2.10.3            # via apache-airflow, flask, flask-babel, python-nvd3
-json-merge-patch==0.2     # via apache-airflow
-jsonschema==3.2.0         # via apache-airflow, flask-appbuilder
-lazy-object-proxy==1.5.0  # via apache-airflow
-lockfile==0.12.2          # via python-daemon
-mako==1.1.3               # via alembic
-markdown==2.6.11          # via apache-airflow
-markupsafe==1.1.1         # via jinja2, mako, wtforms
-marshmallow-enum==1.5.1   # via flask-appbuilder
-marshmallow-sqlalchemy==0.23.1  # via flask-appbuilder
-marshmallow==2.21.0       # via flask-appbuilder, marshmallow-enum, marshmallow-sqlalchemy
-natsort==7.0.1            # via croniter
-numpy==1.18.5             # via pandas
-pandas==0.25.3            # via apache-airflow
-pendulum==1.4.4           # via apache-airflow
-prison==0.1.3             # via flask-appbuilder
-protobuf==3.12.2          # via google-api-core, googleapis-common-protos
-psutil==5.7.0             # via apache-airflow
-psycopg2-binary==2.8.5    # via -r requirements.in
-pyasn1-modules==0.2.8     # via google-auth
-pyasn1==0.4.8             # via pyasn1-modules, rsa
-pygments==2.6.1           # via apache-airflow
-pyjwt==1.7.1              # via flask-appbuilder, flask-jwt-extended
-pyrsistent==0.16.0        # via jsonschema
-python-daemon==2.1.2      # via apache-airflow
-python-dateutil==2.8.1    # via alembic, apache-airflow, croniter, flask-appbuilder, pandas, pendulum
-python-dotenv==0.13.0     # via -r requirements.in
-python-editor==1.0.4      # via alembic
-python-nvd3==0.15.0       # via apache-airflow
-python-slugify==4.0.1     # via apache-airflow, python-nvd3
-python3-openid==3.1.0     # via flask-openid
-pytz==2020.1              # via babel, flask-babel, google-api-core, pandas, tzlocal
-pytzdata==2019.3          # via pendulum
-pyyaml==5.3.1             # via apispec, flask-swagger
-requests==2.23.0          # via -r requirements.in, apache-airflow, google-api-core
-rsa==4.6                  # via google-auth
-setproctitle==1.1.10      # via apache-airflow
-six==1.15.0               # via flask-jwt-extended, google-api-core, google-auth, google-resumable-media, jsonschema, prison, protobuf, pyrsistent, python-dateutil, sqlalchemy-utils, tenacity, thrift
-sqlalchemy-jsonfield==0.9.0  # via apache-airflow
-sqlalchemy-utils==0.36.6  # via flask-appbuilder
-sqlalchemy==1.3.17        # via -r requirements.in, alembic, apache-airflow, flask-sqlalchemy, marshmallow-sqlalchemy, sqlalchemy-jsonfield, sqlalchemy-utils
-tabulate==0.8.7           # via apache-airflow
-tenacity==4.12.0          # via apache-airflow
-text-unidecode==1.3       # via python-slugify
-thrift==0.13.0            # via apache-airflow
-typing-extensions==3.7.4.2  # via apache-airflow
-tzlocal==1.5.1            # via apache-airflow, pendulum
-unicodecsv==0.14.1        # via apache-airflow
-urllib3==1.25.9           # via requests
-werkzeug==0.16.1          # via apache-airflow, flask, flask-caching, flask-jwt-extended
-wtforms==2.3.1            # via flask-admin, flask-wtf
-zipp==3.1.0               # via importlib-metadata
-zope.deprecation==4.4.0   # via apache-airflow
-sendgrid==6.9.4           # via sendgrid 
+alembic==1.4.2
+    # via apache-airflow
+apache-airflow==1.10.11
+    # via -r requirements.in
+apispec[yaml]==1.3.3
+    # via flask-appbuilder
+argcomplete==1.11.1
+    # via apache-airflow
+attrs==19.3.0
+    # via
+    #   apache-airflow
+    #   cattrs
+    #   jsonschema
+babel==2.8.0
+    # via flask-babel
+cached-property==1.5.1
+    # via apache-airflow
+cachetools==4.1.1
+    # via google-auth
+cattrs==1.0.0
+    # via apache-airflow
+certifi==2020.4.5.2
+    # via requests
+chardet==3.0.4
+    # via requests
+click==7.1.2
+    # via
+    #   flask
+    #   flask-appbuilder
+colorama==0.4.3
+    # via flask-appbuilder
+colorlog==4.0.2
+    # via apache-airflow
+configparser==3.5.3
+    # via apache-airflow
+croniter==0.3.32
+    # via apache-airflow
+defusedxml==0.6.0
+    # via python3-openid
+dill==0.3.1.1
+    # via apache-airflow
+dnspython==1.16.0
+    # via email-validator
+docutils==0.16
+    # via python-daemon
+email-validator==1.1.1
+    # via
+    #   apache-airflow
+    #   flask-appbuilder
+flask==1.1.2
+    # via
+    #   apache-airflow
+    #   flask-admin
+    #   flask-appbuilder
+    #   flask-babel
+    #   flask-caching
+    #   flask-jwt-extended
+    #   flask-login
+    #   flask-openid
+    #   flask-sqlalchemy
+    #   flask-swagger
+    #   flask-wtf
+flask-admin==1.5.4
+    # via apache-airflow
+flask-appbuilder==2.3.4
+    # via apache-airflow
+flask-babel==1.0.0
+    # via flask-appbuilder
+flask-caching==1.3.3
+    # via apache-airflow
+flask-jwt-extended==3.24.1
+    # via flask-appbuilder
+flask-login==0.4.1
+    # via
+    #   apache-airflow
+    #   flask-appbuilder
+flask-openid==1.2.5
+    # via flask-appbuilder
+flask-sqlalchemy==2.4.3
+    # via flask-appbuilder
+flask-swagger==0.2.13
+    # via apache-airflow
+flask-wtf==0.14.3
+    # via
+    #   apache-airflow
+    #   flask-appbuilder
+funcsigs==1.0.2
+    # via apache-airflow
+future==0.18.2
+    # via apache-airflow
+google-api-core==1.21.0
+    # via google-cloud-core
+google-auth==1.19.1
+    # via
+    #   -r requirements.in
+    #   google-api-core
+    #   google-cloud-storage
+google-cloud-core==1.3.0
+    # via google-cloud-storage
+google-cloud-storage==1.29.0
+    # via -r requirements.in
+google-resumable-media==0.5.1
+    # via google-cloud-storage
+googleapis-common-protos==1.52.0
+    # via google-api-core
+graphviz==0.14
+    # via apache-airflow
+gunicorn==19.10.0
+    # via apache-airflow
+idna==2.9
+    # via
+    #   email-validator
+    #   requests
+importlib-metadata==1.7.0
+    # via
+    #   argcomplete
+    #   jsonschema
+iso8601==0.1.12
+    # via apache-airflow
+itsdangerous==1.1.0
+    # via
+    #   flask
+    #   flask-wtf
+jinja2==2.10.3
+    # via
+    #   apache-airflow
+    #   flask
+    #   flask-babel
+    #   python-nvd3
+json-merge-patch==0.2
+    # via apache-airflow
+jsonschema==3.2.0
+    # via
+    #   apache-airflow
+    #   flask-appbuilder
+lazy-object-proxy==1.5.0
+    # via apache-airflow
+lockfile==0.12.2
+    # via python-daemon
+mako==1.1.3
+    # via alembic
+markdown==2.6.11
+    # via apache-airflow
+markupsafe==1.1.1
+    # via
+    #   jinja2
+    #   mako
+    #   wtforms
+marshmallow==2.21.0
+    # via
+    #   flask-appbuilder
+    #   marshmallow-enum
+    #   marshmallow-sqlalchemy
+marshmallow-enum==1.5.1
+    # via flask-appbuilder
+marshmallow-sqlalchemy==0.23.1
+    # via flask-appbuilder
+natsort==7.0.1
+    # via croniter
+numpy==1.18.5
+    # via pandas
+pandas==0.25.3
+    # via apache-airflow
+pendulum==1.4.4
+    # via apache-airflow
+prison==0.1.3
+    # via flask-appbuilder
+protobuf==3.12.2
+    # via
+    #   google-api-core
+    #   googleapis-common-protos
+psutil==5.7.0
+    # via apache-airflow
+psycopg2-binary==2.8.5
+    # via -r requirements.in
+pyasn1==0.4.8
+    # via
+    #   pyasn1-modules
+    #   rsa
+pyasn1-modules==0.2.8
+    # via google-auth
+pygments==2.7.4
+    # via apache-airflow
+pyjwt==1.7.1
+    # via
+    #   flask-appbuilder
+    #   flask-jwt-extended
+pyrsistent==0.16.0
+    # via jsonschema
+python-daemon==2.1.2
+    # via apache-airflow
+python-dateutil==2.8.1
+    # via
+    #   alembic
+    #   apache-airflow
+    #   croniter
+    #   flask-appbuilder
+    #   pandas
+    #   pendulum
+python-dotenv==0.13.0
+    # via -r requirements.in
+python-editor==1.0.4
+    # via alembic
+python-nvd3==0.15.0
+    # via apache-airflow
+python-slugify==4.0.1
+    # via
+    #   apache-airflow
+    #   python-nvd3
+python3-openid==3.1.0
+    # via flask-openid
+pytz==2020.1
+    # via
+    #   babel
+    #   flask-babel
+    #   google-api-core
+    #   pandas
+    #   tzlocal
+pytzdata==2019.3
+    # via pendulum
+pyyaml==5.3.1
+    # via
+    #   apispec
+    #   flask-swagger
+requests==2.23.0
+    # via
+    #   -r requirements.in
+    #   apache-airflow
+    #   google-api-core
+rsa==4.6
+    # via google-auth
+setproctitle==1.1.10
+    # via apache-airflow
+six==1.15.0
+    # via
+    #   flask-jwt-extended
+    #   google-api-core
+    #   google-auth
+    #   google-resumable-media
+    #   jsonschema
+    #   prison
+    #   protobuf
+    #   pyrsistent
+    #   python-dateutil
+    #   sqlalchemy-utils
+    #   tenacity
+    #   thrift
+sqlalchemy==1.3.17
+    # via
+    #   -r requirements.in
+    #   alembic
+    #   apache-airflow
+    #   flask-sqlalchemy
+    #   marshmallow-sqlalchemy
+    #   sqlalchemy-jsonfield
+    #   sqlalchemy-utils
+sqlalchemy-jsonfield==0.9.0
+    # via apache-airflow
+sqlalchemy-utils==0.36.6
+    # via flask-appbuilder
+tabulate==0.8.7
+    # via apache-airflow
+tenacity==4.12.0
+    # via apache-airflow
+text-unidecode==1.3
+    # via python-slugify
+thrift==0.13.0
+    # via apache-airflow
+typing-extensions==3.7.4.2
+    # via apache-airflow
+tzlocal==1.5.1
+    # via
+    #   apache-airflow
+    #   pendulum
+unicodecsv==0.14.1
+    # via apache-airflow
+urllib3==1.25.9
+    # via requests
+werkzeug==0.16.1
+    # via
+    #   apache-airflow
+    #   flask
+    #   flask-caching
+    #   flask-jwt-extended
+wtforms==2.3.1
+    # via
+    #   flask-admin
+    #   flask-wtf
+zipp==3.1.0
+    # via importlib-metadata
+zope.deprecation==4.4.0
+    # via apache-airflow
+
 # The following packages are considered to be unsafe in a requirements file:
 # setuptools