Create a task for thoth-github-action testing

[harshad16]

Is your feature request related to a problem? Please describe.
With respect to: thoth-station/thoth-github-action#19
we would like to have a pipeline that would act on PR in thoth-github-action repo and create a PR in the Test repo with the change of commit.

• Create a custom task for : Test-PR
  • Create a separate binding and gather params like: commit hash, repo details
  • create steps:
    • To patch the commit hash in test repo
    • To create PR
  • If we want to do certain action, lets create a test.yaml in thoth-github action repo PR, grab that action from test.yaml in a step and execute it before creating a PR.

[mayaCostantini]

Close as addressed by thoth-station/thoth-github-action#57 with local tests as GitHub Actions and #178 for the aicoe-ci task.