Update vcr requirement from ~> 4 to ~> 5
Update vcr requirement from ~> 4 to ~> 5

Updates the requirements on [vcr](https://github.com/vcr/vcr) to permit the latest version.
- [Release notes](https://github.com/vcr/vcr/releases)
- [Changelog](https://github.com/vcr/vcr/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vcr/vcr/compare/v4.0.0...v5.0.0)
JoeSouthan/citywrapper,JoeSouthan/citywrapper