Add upload-artifact step to PR checks for easier debugging

[rooftopcellist]

Is your feature request related to a problem? Please describe.

Pretty much the same as here:

• Output debug resource to file in molecule test awx-operator#1823

This will basically like a must-gather artifact that gets uploaded for failed runs. Check out this run in the awx-operator repo to see what this would be like:

• https://github.com/ansible/awx-operator/actions/runs/8665355235