Make summary check suitable for blocking PRs

[nwiltsie]

It may be worth making the regression test(s) a required passing check before merging PRs similar to how we have CI/CD set

Yeah, we'll need to work out the best way of doing that - the job names are somewhat dynamic, as they match the test files on disk, so tracking all of them is a moving target. Maybe we can add a summary "all tests passed" check to the Action and then depend upon that.

Originally posted by @nwiltsie in uclahs-cds/pipeline-recalibrate-BAM#55 (comment)