Bump actions/setup-python from 4.6.1 to 4.7.0 (#394)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 4.6.1 to 4.7.0.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@bd6b4b6...61a6322)

---
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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/docs.yml

@@ -28,7 +28,7 @@ jobs:
             pypi.org:443
 
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9
-      - uses: actions/setup-python@bd6b4b6205c4dbad673328db7b31b7fab9e241c0
+      - uses: actions/setup-python@61a6322f88396a6271a6ee3565807d608ecaddd1
         with:
           python-version: 3.x
       - run: pip install mkdocs-material mkdocs-awesome-pages-plugin