build(deps-dev): bump mkdocs-material from 9.5.4 to 9.5.6 (#738)

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
...

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

pyproject.toml

@@ -56,7 +56,7 @@ publish = [
 docs = [
     "black==23.12.1",
     "mkdocs==1.5.3",
-    "mkdocs-material==9.5.4",
+    "mkdocs-material==9.5.6",
     "mkdocstrings[python]==0.24.0",
     "mkdocstrings-python==1.8.0",
     "markdown-include==0.8.1",