Bump gitpython from 3.1.20 to 3.1.27 (#854)

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 3.1.20 to 3.1.27.
- [Release notes](https://github.com/gitpython-developers/GitPython/releases)
- [Changelog](https://github.com/gitpython-developers/GitPython/blob/main/CHANGES)
- [Commits](https://github.com/gitpython-developers/GitPython/compare/3.1.20...3.1.27)

---
updated-dependencies:
- dependency-name: gitpython
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -2,7 +2,7 @@ wheel
 black==22.1.0
 requests==2.27.1
 coreapi==2.3.3
-gitpython==3.1.20
+gitpython==3.1.27
 pre-commit==2.17.0
 pytest==7.0.1
 pytest-mypy-plugins==1.9.3