Run as-if-foss pipeline before approval

What does this MR do and why?

Run as-if-foss pipeline before approval

Since the as-if-foss pipeline should only run what EE would run, and we only run predictive tests in EE, we should also only run predictive in as-if-foss. This should not be expensive to run.

This will also run full as-if-foss for those which EE run full first, but maybe that's really what we want anyway?

Validation

This is tested at !158365 (closed)

• It took changes from the merge request we found this: !154040 (merged)
• It changed app/controllers/projects/jobs_controller.rb
• Before approval, the rspec integration predictive in as-if-foss pipeline did run spec/controllers/projects/jobs_controller_spec.rb: https://gitlab.com/gitlab-org/gitlab-foss/-/jobs/7267250272
• Pipeline took 21 minutes: https://gitlab.com/gitlab-org/gitlab/-/pipelines/1360852894
• as-if-foss pipeline took 16 minutes: https://gitlab.com/gitlab-org/gitlab-foss/-/pipelines/1360858229
• It might be slowing the whole pipeline down a bit (since as-if-foss pipeline can easily come into the critical path), but probably ok?

Related to #470423 (closed)