Bump mkdocs-material from 9.5.27 to 9.5.28 (#888)

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.5.27 to 9.5.28.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.5.27...9.5.28)

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

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

Author: dependabot[bot]

mkdocs/requirements.txt

@@ -23,6 +23,6 @@ mkdocstrings-python==1.10.5
 mkdocs-literate-nav==0.6.1
 mkdocs-autorefs==1.0.1
 mkdocs-gen-files==0.5.0
-mkdocs-material==9.5.27
+mkdocs-material==9.5.28
 mkdocs-material-extensions==1.3.1
 mkdocs-section-index==0.3.9