Merge branch 'morefice/swap-primary-key-ci-job-stages' into 'master'

Add composite PK to ci_stages

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/144025



Merged-by: Marius Bobin <mbobin@gitlab.com>
Approved-by: Panos Kanellidis <pkanellidis@gitlab.com>
Approved-by: Marius Bobin <mbobin@gitlab.com>
Co-authored-by: Maxime Orefice <morefice@gitlab.com>