Implement CICD test to check the PYPI package
- Find out whether something is different from the installed package to the source code testings
- Ideally runs on development only (not too many commits -> merge commits)
- Copy the build job
- get the last version number (vX.Y.Z-buildnr e.g. 1.0.3-456) from the test-pypi instance (API), count +1 and write it into version file)
- build and push to test-repo
- Add a test (unittests or a run of example) not on source code but on installed test-instance
- (Block merges to main if this test fails)