Bump requests from 2.25.1 to 2.31.0

Bumps [requests](https://github.com/psf/requests) from 2.25.1 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@v2.25.1...v2.31.0)

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

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

docs/requirements.txt

@@ -5,7 +5,7 @@ imagesize==1.4.1
 Jinja2==3.0.3
 packaging==21.3
 Pygments==2.17.2
-requests==2.25.1
+requests==2.31.0
 Sphinx==7.2.6
 sphinx-rtd-theme==2.0.0
 sphinxcontrib-applehelp==1.0.8