deps-dev(deps-dev): update mkdocs-material requirement

Updates the requirements on [mkdocs-material](https://github.com/squidfunk/mkdocs-material) to permit the latest version.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.5.0...9.7.6)

---
updated-dependencies:
- dependency-name: mkdocs-material
  dependency-version: 9.7.6
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -4,6 +4,6 @@ isort>=5.13.0
 ruff>=0.1.0
 pre-commit>=3.6.0
 mkdocs>=1.6.0
-mkdocs-material>=9.5.0
+mkdocs-material>=9.7.6
 mkdocs-mermaid2-plugin>=1.1.0
 pymdown-extensions>=10.0.0