Bump gitpython from 3.1.29 to 3.1.30

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 3.1.29 to 3.1.30.
- [Release notes](https://github.com/gitpython-developers/GitPython/releases)
- [Changelog](https://github.com/gitpython-developers/GitPython/blob/main/CHANGES)
- [Commits](gitpython-developers/GitPython@3.1.29...3.1.30)

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

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

requirements.txt

@@ -38,7 +38,7 @@ fs==2.4.16
 gflanguages==0.4.3
 gftools==0.9.21
 gitdb==4.0.10
-GitPython==3.1.29
+GitPython==3.1.30
 glyphsets==0.5.4
 glyphsLib==6.1.0
 glyphtools==0.8.0