Bump mkdocs-redirects from 1.2.0 to 1.2.1

Bumps [mkdocs-redirects](https://github.com/datarobot/mkdocs-redirects) from 1.2.0 to 1.2.1.
- [Release notes](https://github.com/datarobot/mkdocs-redirects/releases)
- [Commits](https://github.com/datarobot/mkdocs-redirects/compare/v1.2.0...v1.2.1)

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

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

docs/requirements.txt

@@ -1,4 +1,4 @@
 mkdocs-awesome-pages-plugin==2.9.1
 mkdocs-material==9.1.18
 mkdocs-minify-plugin==0.6.4
-mkdocs-redirects==1.2.0
+mkdocs-redirects==1.2.1