Bump mkdocs-material from 9.5.4 to 9.5.6 (#546)

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.5.4 to 9.5.6.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.5.4...9.5.6)

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

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

requirements.txt

@@ -65,7 +65,7 @@ mkdocs==1.5.3
     #   render-engine (pyproject.toml)
 mkdocs-autorefs==0.5.0
     # via mkdocstrings
-mkdocs-material==9.5.4
+mkdocs-material==9.5.6
     # via render-engine (pyproject.toml)
 mkdocs-material-extensions==1.3.1
     # via mkdocs-material