Bump requests from 2.24.0 to 2.25.0

Bumps [requests](https://github.com/psf/requests) from 2.24.0 to 2.25.0.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/master/HISTORY.md)
- [Commits](https://github.com/psf/requests/compare/v2.24.0...v2.25.0)

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

requirements.txt

 django-redis==4.12.1
 pysolr==3.9.0
 redis==3.5.3
-requests==2.24.0
+requests==2.25.0
 uWSGI==2.0.19.1
 whitenoise==5.2.0