build(deps): bump gitpython from 3.1.45 to 3.1.46

Bumps [gitpython](https://github.com/gitpython-developers/GitPython) from 3.1.45 to 3.1.46.
- [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/3.1.45...3.1.46)

---
updated-dependencies:
- dependency-name: gitpython
  dependency-version: 3.1.46
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -9,7 +9,7 @@ pip == 25.3          # pip is the package installer for Python
 setuptools == 80.9.0   # for building Python packages
 pyelftools == 0.32     # for building U-Boot
 unidiff == 0.7.5       # for parsing unified diff
-GitPython == 3.1.45    # for manipulating git repos
+GitPython == 3.1.46    # for manipulating git repos
 unidecode == 1.4.0     # for converting strings to ascii
 coloredlogs == 15.0.1  # for colored logging
 PyYAML == 6.0.3        # for parsing/writing YAML