Story #5890: [Epic] The ansible-pulp installer needs to handle multiple versions of Pulp
Currently, the pulp_installer CI runs release tests (installing say pulpcore 3.3.0 & pulp_file 0.3.0) and source tests (installing master branch of pulpcore & pulp_file, with devel role) together as 1 GitHub Actions job.
This was done initially because there were only 2 tests (we now have 6 tests that run as 3 GHA jobs), and later preserved because there was common prep work for tests (thus reducing overall CI resources needed.)
Now that we are on GitHub actions and we have more performance/resources, we want to know which exact test failed, so let's separate them.
It also is part of the parent task.