build(deps): bump mkdocs-material in /docs in the mkdocs group

Bumps the mkdocs group in /docs with 1 update: [mkdocs-material](https://github.com/squidfunk/mkdocs-material).


Updates `mkdocs-material` from 9.5.42 to 9.5.43
- [Release notes](https://github.com/squidfunk/mkdocs-material/releases)
- [Changelog](https://github.com/squidfunk/mkdocs-material/blob/master/CHANGELOG)
- [Commits](squidfunk/mkdocs-material@9.5.42...9.5.43)

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

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

docs/requirements.txt

@@ -19,7 +19,7 @@ mkdocs-exclude==1.0.2
 mkdocs-get-deps==0.2.0
 mkdocs-include-markdown-plugin==7.0.0
 mkdocs-macros-plugin==1.3.7
-mkdocs-material==9.5.42
+mkdocs-material==9.5.43
 mkdocs-material-extensions==1.3.1
 packaging==24.1
 paginate==0.5.7