Working Continuous Integration GitHub Actions

[paulsiersma]

Is your feature request related to a problem? Please describe.

The problem is that the CI Github actions fail for our fork

Describe the solution you'd like

They should not fail, so that they start to act as automatic checks that code is good.

Describe alternatives you've considered

This is the way.

Additional context

You can see what I mean in all pull requests, the checks start running automatically but all fail every time.