Bump mkdocs-material from 7.0.2 to 7.0.6 (#52)

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 7.0.2 to 7.0.6.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/docs/changelog.md)
- [Commits](squidfunk/mkdocs-material@7.0.2...7.0.6)

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

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

requirements-dev.txt

@@ -11,7 +11,7 @@ lunr==0.5.8
 Markdown==3.3.4
 MarkupSafe==1.1.1
 mkdocs==1.1.2
-mkdocs-material==7.0.2
+mkdocs-material==7.0.6
 mkdocs-material-extensions==1.0.1
 mypy-extensions==0.4.3
 nltk==3.5