Bump the python-dependencies group with 2 updates

Bumps the python-dependencies group with 2 updates: [cyclopts](https://github.com/BrianPugh/cyclopts) and [gitpython](https://github.com/gitpython-developers/GitPython).


Updates `cyclopts` from 4.20.0 to 4.21.0
- [Release notes](https://github.com/BrianPugh/cyclopts/releases)
- [Commits](BrianPugh/cyclopts@v4.20.0...v4.21.0)

Updates `gitpython` from 3.1.50 to 3.1.51
- [Release notes](https://github.com/gitpython-developers/GitPython/releases)
- [Changelog](https://github.com/gitpython-developers/GitPython/blob/main/CHANGES)
- [Commits](gitpython-developers/GitPython@3.1.50...3.1.51)

---
updated-dependencies:
- dependency-name: cyclopts
  dependency-version: 4.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: python-dependencies
- dependency-name: gitpython
  dependency-version: 3.1.51
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: python-dependencies
...

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

Author: dependabot[bot]

pyproject.toml

@@ -14,7 +14,7 @@ dependencies = [
     # Be as loose as possible if writing a library.
     "typing-extensions>=4.15.0",
     "rich>=10.11.0",
-    "cyclopts>=3.24.0",
+    "cyclopts>=4.21.0",
 ]
 
 [project.urls]
@@ -34,7 +34,7 @@ dev = [
     "pytest-mock>=3.7.0",
 ]
 docs = [
-    "gitpython>=3.1.31",
+    "gitpython>=3.1.51",
     "sphinx~=8.1.3",
     "sphinx-copybutton>=0.5.2",
     "sphinx-rtd-theme~=3.1.0",