Bump mkdocs-material from 9.5.39 to 9.5.40 (#19)

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.5.39 to 9.5.40.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.5.39...9.5.40)

---
updated-dependencies:
- dependency-name: mkdocs-material
  dependency-type: direct:development
  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>

requirements_dev.txt

@@ -5,6 +5,6 @@ pydantic
 pre-commit>=3.6.1
 python-dotenv>=1.0.1
 ruff~=0.6
-mkdocs-material==9.5.39
+mkdocs-material==9.5.40
 mkdocstrings[python]==0.26.1