Merge branch '443857-derive-child-org-from-parent' into 'master'

Set project organization from its namespace

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/150301



Merged-by: Max Fan <mfan@gitlab.com>
Approved-by: Max Fan <mfan@gitlab.com>
Reviewed-by: Alex Pooley <apooley@gitlab.com>
Reviewed-by: Allison Browne <abrowne@gitlab.com>
Reviewed-by: Abdul Wadood <awadood@gitlab.com>
Reviewed-by: Joe Woodward <jwoodward@gitlab.com>
Reviewed-by: Bojan Marjanovic <bmarjanovic@gitlab.com>
Co-authored-by: bmarjanovic <bmarjanovic@gitlab.com>
Co-authored-by: Abdul Wadood <awadood@gitlab.com>