Bump requests from 2.22.0 to 2.26.0

Bumps [requests](https://github.com/psf/requests) from 2.22.0 to 2.26.0.
- [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/v2.22.0...v2.26.0)

---
updated-dependencies:
- dependency-name: requests
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

requirements.txt

@@ -28,7 +28,7 @@ pyOpenSSL==20.0.1
 pytz==2021.1
 PyYAML==5.4.1
 redis==3.5.3
-requests==2.25.1
+requests==2.26.0
 responses==0.13.3
 rq==1.8.0
 rsa==4.7.2