Bump requests from 2.19.1 to 2.20.0

Bumps [requests](https://github.com/requests/requests) from 2.19.1 to 2.20.0.
- [Release notes](https://github.com/requests/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/master/HISTORY.md)
- [Commits](psf/requests@v2.19.1...v2.20.0)

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

Author: dependabot[bot]

requirements.txt

@@ -5,7 +5,7 @@ idna==2.7
 multidict==4.4.2
 odictliteral==1.0.0
 pokeapi-ditto==0.6.1
-requests==2.19.1
+requests==2.20.0
 tqdm==4.26.0
 urllib3==1.23
 yarl==1.2.6