Some tests are coupled to the state of a repository #6
Description
For some tests we use VCR to record the API response of GitHub / Octokit. However, this resulted that some tests are coupled to the state of a repository. If we remove the cassettes and the state of the repository changed (closed PR), we might need to change the test as well.
We should extract the API response from the cassettes and wrap it into WebMock responses instead.
See #5