Bump actions/setup-python from 4.3.0 to 4.4.0

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 4.3.0 to 4.4.0.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@13ae5bb...5ccb29d)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

.github/workflows/docs.yml

@@ -28,7 +28,7 @@ jobs:
             pypi.org:443
 
       - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
-      - uses: actions/setup-python@13ae5bb136fac2878aff31522b9efb785519f984
+      - uses: actions/setup-python@5ccb29d8773c3f3f653e1705f474dfaa8a06a912
         with:
           python-version: 3.x
       - run: pip install mkdocs-material mkdocs-awesome-pages-plugin