Bump mkdocs-material from 9.6.18 to 9.6.20

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.6.18 to 9.6.20.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.6.18...9.6.20)

---
updated-dependencies:
- dependency-name: mkdocs-material
  dependency-version: 9.6.20
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -13,7 +13,7 @@ markupsafe==2.1.5
 mergedeep==1.3.4
 mkdocs==1.6.1
 mkdocs-get-deps==0.2.0
-mkdocs-material==9.6.18
+mkdocs-material==9.6.20
 mkdocs-material-extensions==1.3.1
 packaging==24.0
 paginate==0.5.6