Rebuild tests using Checkmk containers

[robin-checkmk]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

We currently use the default container with ansible-test and install Checkmk into it on every test run.
This is not only lengthy, but has repercussions, e.g., just recently the OS of that container was bumped to a new version, breaking some of our test.

What is the new behavior?

We use the GitHub Actions services: keyword, to start native Checkmk containers to run our tests against.

Other information

This is a work in progress!

ToDo:

• Figure out how to handle managed edition -> Docker Login Timeout issue -> Download free?!
• https://github.com/orgs/community/discussions/128570

[lgetwan]

Looks like a lot of work!
I think I didn't get how the whole thing went into containers, based on the information I have here (changed files).