Bump requests from 2.28.1 to 2.31.0 in /requirements (#487)

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](psf/requests@v2.28.1...v2.31.0)

---
updated-dependencies:
- dependency-name: requests
  dependency-type: indirect
...

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

requirements/dev.txt

@@ -113,7 +113,7 @@ pyyaml==6.0
     # via pre-commit
 redis==5.0.0
     # via -r tests.in
-requests==2.28.1
+requests==2.31.0
     # via sphinx
 snowballstemmer==2.2.0
     # via sphinx

requirements/docs.txt

@@ -38,7 +38,7 @@ pyparsing==3.0.9
     # via packaging
 pytz==2022.1
     # via babel
-requests==2.28.1
+requests==2.31.0
     # via sphinx
 snowballstemmer==2.2.0
     # via sphinx