Bump gitpython from 3.1.35 to 3.1.37 in /docs/sphinx (#912)

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 3.1.35 to 3.1.37.
- [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/3.1.35...3.1.37)

---
updated-dependencies:
- dependency-name: gitpython
  dependency-type: indirect
...

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docs/sphinx/requirements.txt

@@ -40,7 +40,7 @@ fastjsonschema==2.16.3
     # via rocm-docs-core
 gitdb==4.0.10
     # via gitpython
-gitpython==3.1.35
+gitpython==3.1.37
     # via rocm-docs-core
 idna==3.4
     # via requests