Bump requests from 2.18.4 to 2.20.0 in /python

Bumps [requests](https://github.com/psf/requests) from 2.18.4 to 2.20.0.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/master/HISTORY.md)
- [Commits](psf/requests@v2.18.4...v2.20.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

python/requirements.txt

@@ -2,5 +2,5 @@ flask==1.1.1
 flask_cors==3.0.8
 psycopg2-binary==2.8.4
 python-dotenv==0.12.0
-requests==2.18.4
+requests==2.20.0
 sentry-sdk==0.14.2