Split test report jobs into separate workflows

[FantasyTeddy]

This is an alternative solution for fixing #25, following the guide for Recommended setup for public repositories in dorny/test-reporter.

Types of changes

• Bug fix (non-breaking change which fixes an issue).
• New feature (non-breaking change which adds functionality).
• Breaking change (fix or feature that would cause existing functionality to not work as expected).
• Performance improvement
• Refactoring (so no functional change)
• Other (docs, build config, etc)

Checklist:

• I've added tests for my code. (most of the time mandatory)
• I have added an entry to the changelog. (mandatory)
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[gasparnagy]

Thx! So good. I had this in my todo list, but couldn't get time for it. 💯

[gasparnagy]

@FantasyTeddy Do you have any idea why it fails? https://github.com/reqnroll/Reqnroll/actions/runs/7917745616/job/21620827514

[FantasyTeddy]

No, unfortunately not. Apparently I didn't test this well enough 😞
The only related thing I could find is this issue: dorny/test-reporter#343
Feel free to revert the change, maybe I can investigate more later.