Bump mkdocs-material from 9.5.50 to 9.6.3

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.5.50 to 9.6.3.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](https://github.com/squidfunk/mkdocs-material/compare/9.5.50...9.6.3)