Bump mkdocs-material[imaging] from 9.6.7 to 9.6.12 (#37)

Bumps [mkdocs-material[imaging]](https://github.com/squidfunk/mkdocs-material) from 9.6.7 to 9.6.12.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.6.7...9.6.12)

---
updated-dependencies:
- dependency-name: mkdocs-material[imaging]
  dependency-version: 9.6.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements.txt

@@ -1,4 +1,4 @@
-mkdocs-material[imaging]==9.6.7
+mkdocs-material[imaging]==9.6.12
 mkdocs-git-revision-date-localized-plugin==1.4.5
 mkdocs-git-committers-plugin-2==2.5.0
 mkdocs-glightbox==0.4.0