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

@@ -17,7 +17,7 @@ Markdown==3.3.4
 Pillow==8.3.1
 psycopg2-binary==2.9.1
 python-dotenv==0.18.0
-requests==2.25.1
+requests==2.26.0
 simplejson==3.17.3
 six==1.16.0
 webdavclient3==3.14.5