Bump gitpython from 3.1.27 to 3.1.28 in /compilesketches

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 3.1.27 to 3.1.28.
- [Release notes](https://github.com/gitpython-developers/GitPython/releases)
- [Changelog](https://github.com/gitpython-developers/GitPython/blob/main/CHANGES)
- [Commits](gitpython-developers/GitPython@3.1.27...3.1.28)

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

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

Author: dependabot[bot]

compilesketches/requirements.txt

@@ -1,4 +1,4 @@
-GitPython==3.1.27
+GitPython==3.1.28
 PyGithub==1.55
 PyYAML==6.0
 semver==2.13.0