feat(test): Add traceability requirements

[zpetrace]

The intention of CCT-1311 is to add a gating.el10 job for python-iniparse. Before that it would be good to have the traceability matrix to be able to report our tests to Polarion. This PR therefore adds the neccessary docstrings for Betelgeuse to each test. It also adds two github workflows - checks for betelgeuse and for testimony so that on every PR we have a check that the tests have these requirements.

[jsefler]

CCT-1063 was Closed as a duplicate of CCT-1311. Please start using CCT-1311 in all your jira references.

[jirihnidek]

It looks like that there is some incompatibility in unit test on Fedora 42, which contains new version of Python (something like method xyz has been deprecated for a while and now it is completely removed). We should fix this issue in another PR before merging this PR.

[jirihnidek]

Testimony validation job failed with error saying that 100% of doc strings is wrong: Total number of invalid docstrings: 74 (100.00%). I do not understand why. Message like this does not say me anything useful:

TestUnicode::test_unicode_with_bom:89
-------------------------------------

* Tokens with invalid values:
  Polarion-project-id: RHELSS
      type: choice
      case sensitive: False
      choices: ['test-polarion-id']
  Requirement: RHSS-291606
      type: choice
      case sensitive: False
      choices: ['test-requirement']

[jirihnidek]

Thanks for update. Can you please not remove existing doc string completely that confuses betelgeuse? Can you please convert these "confusing" doc strings to comments? I do not want to lost existing information

[jirihnidek]

Thanks for update 👍 I have one small request.

[jirihnidek]

LGTM