build(deps): bump mkdocs from 1.5.3 to 1.6.1

Bumps [mkdocs](https://github.com/mkdocs/mkdocs) from 1.5.3 to 1.6.1.
- [Release notes](https://github.com/mkdocs/mkdocs/releases)
- [Commits](https://github.com/mkdocs/mkdocs/compare/1.5.3...1.6.1)

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

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

requirements-docs.txt

@@ -102,7 +102,7 @@ mergedeep==1.3.4
     # via mkdocs
 mike==2.0.0
     # via hatch.envs.docs
-mkdocs==1.5.3
+mkdocs==1.6.1
     # via
     #   hatch.envs.docs
     #   mike