Add CE and Staging jobs back and exclude jobs that don't match RELEASE
This puts the jobs back that were temporarily removed, makes CE and Staging jobs manual again, and excludes them when package-and-qa
is triggered from GitLab MRs. It also excludes EE jobs from GitLab-foss pipelines.
This should get us back in the state that I believe was intended by https://gitlab.com/gitlab-org/gitlab-qa/-/merge_requests/390
(If we want to run CE tests from GitLab MRs (instead of GitLab-foss) we need to build and test CE images)
Closes https://gitlab.com/gitlab-org/gitlab-qa/issues/536 and https://gitlab.com/gitlab-org/gitlab-qa/issues/537
Edited by George Koltsov