Merge branch 'ma/deduplicate-selectors' into 'master'

De-duplicate CI Variables selectors

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/135084



Merged-by: Miranda Fluharty <mfluharty@gitlab.com>
Approved-by: Minahil Nichols <minahilnichols@gitlab.com>
Approved-by: Miranda Fluharty <mfluharty@gitlab.com>
Approved-by: Sofia Vistas <svistas@gitlab.com>
Co-authored-by: Mireya Andres <mandres@gitlab.com>