Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 6.2.7 to 6.2.8. - [Release notes](https://github.com/squidfunk/mkdocs-material/releases) - [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/docs/changelog.md) - [Commits](https://github.com/squidfunk/mkdocs-material/compare/6.2.7...6.2.8) Signed-off-by: dependabot[bot] <support@github.com>