Bump mkdocs-material from 9.4.2 to 9.4.7

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.4.2 to 9.4.7.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.4.2...9.4.7)

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

Signed-off-by: dependabot[bot] <[email protected]>

setup.py

@@ -52,7 +52,7 @@
         extras_require={
             "docs": [
                 "mkdocs==1.5.3",
-                "mkdocs-material==9.4.2",
+                "mkdocs-material==9.4.7",
                 "mkdocs-minify-plugin==0.7.1",
                 "mkdocs-macros-plugin==1.0.4",
                 "markdown-include==0.8.1",