Merge branch 'schmil-transition-sbom_occurrences_vulnerabilities-to-loose-foreign-keys' into 'master' 

Transition sbom_occurrences_vulnerabilities to gitlab_sec schema

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/158387



Merged-by: Thong Kuah <tkuah@gitlab.com>
Approved-by: Dylan Griffith <dyl.griffith@gmail.com>
Approved-by: Thong Kuah <tkuah@gitlab.com>
Reviewed-by: Lucas Charles <me@lucascharles.me>
Co-authored-by: Schmil Monderer <smonderer@gitlab.com>