Bump gitpython from 2.0.2 to 3.1.34

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 2.0.2 to 3.1.34.
- [Release notes](https://github.com/gitpython-developers/GitPython/releases)
- [Changelog](https://github.com/gitpython-developers/GitPython/blob/main/CHANGES)
- [Commits](gitpython-developers/GitPython@2.0.2...3.1.34)

---
updated-dependencies:
- dependency-name: gitpython
  dependency-type: direct:production
...

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

setup.py

@@ -19,7 +19,7 @@
  "cookies==2.2.1",
  "docopt==0.6.2",
  "gitdb==0.6.4",
- "GitPython==2.0.2",
+ "GitPython==3.1.34",
  "mock==2.0.0",
  "multi-key-dict==2.0.3",
  "packaging==16.8",