Bump requests in /images/env-sphinx in the pip group across 1 directory

Bumps the pip group with 1 update in the /images/env-sphinx directory: [requests](https://github.com/psf/requests).


Updates `requests` from 2.31.0 to 2.32.2
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.31.0...v2.32.2)

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

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

images/env-sphinx/requirements.txt

@@ -21,7 +21,7 @@ Pygments==2.16.1
 python-dateutil==2.9.0.post0
 PyYAML==6.0.2
 pyyaml_env_tag==0.1
-requests==2.31.0
+requests==2.32.2
 SCons==4.0.1
 six==1.16.0
 snowballstemmer==2.2.0