Add per-stage reports
Adds jobs for each Stage that include only the JUnit results for that Stage.
Part of https://gitlab.com/gitlab-org/quality/team-tasks/issues/316
Depends on gitlab-org/gitlab-qa!374 (merged)
Tested using a temporary staging pipeline with a reference to the branch for this MR. See https://gitlab.com/gitlab-org/quality/staging/commits/ml-test-per-stage-reports
Edited by Mark Lapierre