Bump requests from 2.25.1 to 2.26.0

Bumps [requests](https://github.com/psf/requests) from 2.25.1 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/v2.25.1...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

@@ -9,7 +9,7 @@ SQLAlchemy==1.4.20
 python-telegram-bot==13.7
 arrow==1.1.1
 cachetools==4.2.2
-requests==2.25.1
+requests==2.26.0
 urllib3==1.26.6
 wrapt==1.12.1
 jsonschema==3.2.0