Bump mkdocs-material from 9.5.27 to 9.5.28 in the mkdocs group

Bumps the mkdocs group with 1 update: [mkdocs-material](https://github.com/squidfunk/mkdocs-material).


Updates `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
  dependency-group: mkdocs
...

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

requirements.txt

@@ -5,7 +5,7 @@ mkdocs-autorefs==1.0.1
 mkdocs-bibtex==2.16.0
 mkdocs-include-markdown-plugin==6.2.1
 mkdocs-material-extensions==1.3.1
-mkdocs-material==9.5.27
+mkdocs-material==9.5.28
 mkdocs-print-site-plugin==2.5.0
 mkdocstrings-python==1.10.5
 mkdocstrings==0.25.1