Bump pyupgrade from 2.9.0 to 2.10.0 (#41)

Bumps [pyupgrade](https://github.com/asottile/pyupgrade) from 2.9.0 to 2.10.0.
- [Release notes](https://github.com/asottile/pyupgrade/releases)
- [Commits](asottile/pyupgrade@v2.9.0...v2.10.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

requirements-dev.txt

@@ -6,7 +6,7 @@ flake8-docstrings==1.5.0
 flake8==3.8.4
 isort==5.7.0
 pydocstyle==5.1.1
-pyupgrade==2.9.0
+pyupgrade==2.10.0
 pre-commit>=2.4.0
 sphinx>=3.4.3
 recommonmark>=0.7.1