Bump requests from 2.27.1 to 2.28.1

Bumps [requests](https://github.com/psf/requests) from 2.27.1 to 2.28.1.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](psf/requests@v2.27.1...v2.28.1)

---
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

@@ -30,7 +30,7 @@ pycurl==7.45.1
 pydvdid==1.1
 pyudev==0.23.2
 PyYAML==6.0
-requests==2.27.1
+requests==2.28.1
 requests-oauthlib==1.3.1
 robobrowser==0.5.3
 six==1.16.0