Merge branch 'cngo-replace-LabelType-object' into 'master'

Replace LabelType object with WORKSPACE_* constants

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/113386



Merged-by: Himanshu Kapoor <info@fleon.org>
Approved-by: Himanshu Kapoor <info@fleon.org>
Approved-by: Paul Gascou-Vaillancourt <pgascouvaillancourt@gitlab.com>
Co-authored-by: Coung Ngo <cngo@gitlab.com>