chore(dependencies): Bump vcr from 3.0.3 to 4.0.0 in /backend
chore(dependencies): Bump vcr from 3.0.3 to 4.0.0 in /backend

Bumps [vcr](https://github.com/vcr/vcr) from 3.0.3 to 4.0.0.
- [Changelog](https://github.com/vcr/vcr/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vcr/vcr/commits)
roschaefer/rundfunk-mitbestimmen,roschaefer/rundfunk-mitbestimmen,roschaefer/rundfunk-mitbestimmen