⬆️ Bump mkdocs-material from 9.6.4 to 9.6.5 in /docs/mkdocs (nlohmann#4659)

Bumps [mkdocs-material](https://github.com/squidfunk/mkdocs-material) from 9.6.4 to 9.6.5.
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.6.4...9.6.5)

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

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

Author: dependabot[bot]

docs/mkdocs/requirements.txt

@@ -2,7 +2,7 @@ wheel==0.45.1
 
 mkdocs==1.6.1                                       # documentation framework
 mkdocs-git-revision-date-localized-plugin==1.3.0    # plugin "git-revision-date-localized"
-mkdocs-material==9.6.4                             # theme for mkdocs
+mkdocs-material==9.6.5                             # theme for mkdocs
 mkdocs-material-extensions==1.3.1                   # extensions
 mkdocs-minify-plugin==0.8.0                         # plugin "minify"
 mkdocs-redirects==1.2.2                             # plugin "redirects"