Add generic config handling and move the generic code

[LecrisUT]

• Added a handling for fedora-ci.yaml, etc.
• Broke the symlinks between the other tests to the dist-git-prepare.py
• Moved much of the common code to an utils package

[LecrisUT]

CC @FrostyX, see 893f3e9 mainly

[LecrisUT]

So here is a test run: https://artifacts.dev.testing-farm.io/7124c1ac-f6c5-41a8-a7a2-accc4cda6fe3/

• rpmlint works fine rpmlint.toml is picked up
• fedora-review could not run because testing-farm did not allow it, raising a followup issue
  • ran it locally and it seemed fine

    INFO: Processing local files: python3.15
    INFO: Getting .spec and .srpm Urls from : Local files in /var/tmp/tmt/run-026/plans/fedora-review/data
    INFO:   --> SRPM url: file:///var/tmp/tmt/run-026/plans/fedora-review/data/python3.15-3.15.0~b1-1.eln156.src.rpm
    INFO:   --> Spec url: file:///var/tmp/tmt/run-026/plans/fedora-review/data/python3.15.spec
    INFO: Using review directory: /var/tmp/tmt/run-026/plans/fedora-review/data/review-python3.15
    

    (failed after that for more issues to investigate 🙃)
• license-validate the file was picked right but the test failed for some undetermined reason (Edit: it was because it ran on eln)

Edit: tried again against tmt: https://artifacts.dev.testing-farm.io/8f38640e-a69d-4863-ade0-28b09df62769/ and still good

[FrostyX]

Thank you very much for the PR @LecrisUT,
I really appreciate the feature.

I don't like / I am confused about some implementation details and I think all of them stem from the not sharing one distgit-prepare.py for all tests but rather duplicating it for every test. IMHO it would make things much easier if we moved it to utils. What do you think about that?

[mfocko]

LGTM… is there anything blocking this?

[LecrisUT]

@FrostyX can you give it one more look over and if all good we can go with this base and iterate more as we need.

Resolved in internal chat, all fine to go ahead and iterate more from this.