chore(deps): bump the python group in /backend with 4 updates

Bumps the python group in /backend with 4 updates: [django](https://github.com/django/django), [django-filter](https://github.com/carltongibson/django-filter), [markdown](https://github.com/Python-Markdown/markdown) and [pip-tools](https://github.com/jazzband/pip-tools).


Updates `django` from 5.0.2 to 5.0.3
- [Commits](django/django@5.0.2...5.0.3)

Updates `django-filter` from 23.5 to 24.1
- [Release notes](https://github.com/carltongibson/django-filter/releases)
- [Changelog](https://github.com/carltongibson/django-filter/blob/main/CHANGES.rst)
- [Commits](carltongibson/django-filter@23.5...24.1)

Updates `markdown` from 3.5.2 to 3.6
- [Release notes](https://github.com/Python-Markdown/markdown/releases)
- [Changelog](https://github.com/Python-Markdown/markdown/blob/master/docs/changelog.md)
- [Commits](Python-Markdown/markdown@3.5.2...3.6)

Updates `pip-tools` from 7.4.0 to 7.4.1
- [Release notes](https://github.com/jazzband/pip-tools/releases)
- [Changelog](https://github.com/jazzband/pip-tools/blob/main/CHANGELOG.md)
- [Commits](jazzband/pip-tools@7.4.0...7.4.1)

---
updated-dependencies:
- dependency-name: django
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: python
- dependency-name: django-filter
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: python
- dependency-name: markdown
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python
- dependency-name: pip-tools
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python
...

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

backend/dev-requirements.txt

@@ -12,7 +12,7 @@ click==8.1.3
     # via pip-tools
 packaging==23.1
     # via build
-pip-tools==7.4.0
+pip-tools==7.4.1
     # via -r dev-requirements.in
 pycodestyle==2.10.0
     # via autopep8

backend/requirements.txt

@@ -12,7 +12,7 @@ beautifulsoup4==4.12.3
     # via -r requirements.in
 dj-database-url==2.1.0
     # via -r requirements.in
-django==5.0.2
+django==5.0.3
     # via
     #   -r requirements.in
     #   dj-database-url
@@ -23,7 +23,7 @@ django==5.0.2
     #   djangorestframework-simplejwt
 django-apscheduler==0.6.2
     # via -r requirements.in
-django-filter==23.5
+django-filter==24.1
     # via -r requirements.in
 django-model-utils==4.4.0
     # via -r requirements.in
@@ -37,7 +37,7 @@ drf-writable-nested==0.7.0
     # via -r requirements.in
 gunicorn==21.2.0
     # via -r requirements.in
-markdown==3.5.2
+markdown==3.6
     # via -r requirements.in
 packaging==23.1
     # via gunicorn