⬆️ Bump requests from 2.28.1 to 2.31.0 in /docs/mkdocs

Bumps [requests](https://github.com/psf/requests) from 2.28.1 to 2.31.0.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](https://github.com/psf/requests/compare/v2.28.1...v2.31.0)

---
updated-dependencies:
- dependency-name: requests
  dependency-type: direct:production
...

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

docs/mkdocs/requirements.txt

@@ -39,7 +39,7 @@ pytz==2022.7
 PyYAML==6.0
 pyyaml_env_tag==0.1
 regex==2022.10.31
-requests==2.28.1
+requests==2.31.0
 six==1.16.0
 smmap==5.0.0
 tornado==6.2