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>

requirements.txt

@@ -26,7 +26,7 @@ PyJWT==2.4.0
 python-decouple==3.3
 python3-openid==3.2.0
 pytz==2019.3
-requests==2.25.1
+requests==2.31.0
 requests-oauthlib==1.3.0
 six==1.15.0
 social-auth-app-django==4.0.0