Merge branch 'decompose-sbom_source_packages' into 'master'

feat: Decompose sbom_source_packages from sbom_occurrences

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/158143



Merged-by: Leonardo da Rosa <ldarosa@gitlab.com>
Approved-by: Marcos Rocha <mrocha@gitlab.com>
Approved-by: Leonardo da Rosa <ldarosa@gitlab.com>
Reviewed-by: Lucas Charles <me@lucascharles.me>
Reviewed-by: Leonardo da Rosa <ldarosa@gitlab.com>
Co-authored-by: Lucas Charles <lcharles@gitlab.com>