Bump gitpython from 3.1.20 to 3.1.23

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 3.1.20 to 3.1.23.
- [Release notes](https://github.com/gitpython-developers/GitPython/releases)
- [Changelog](https://github.com/gitpython-developers/GitPython/blob/main/CHANGES)
- [Commits](gitpython-developers/GitPython@3.1.20...3.1.23)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

poetry.lock

@@ -17,7 +17,7 @@ black = "^21.8b0"
 flake8 = "^3.9.2"
 pep8-naming = "^0.12.1"
 pytest = "^6.2.5"
-GitPython = "^3.1.20"
+GitPython = "^3.1.23"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]