Merge branch 'tag-cng-images-with-commit-sha' into 'master'

ci: Tag CNG images with commit sha instead of ref

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/107867



Merged-by: Lin Jen-Shin <jen-shin@gitlab.com>
Approved-by: David Dieulivol <ddieulivol@gitlab.com>
Approved-by: Lin Jen-Shin <jen-shin@gitlab.com>
Approved-by: Balasankar 'Balu' C <balasankar@gitlab.com>
Co-authored-by: Rémy Coutable <remy@rymai.me>