Merge branch...

Merge branch '386494-investigate-removal-of-requires_new-in-vulnerabilities-createservice' into 'master'

Do not create subtransactions in Vulnerabilities::CreateService

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/108592



Merged-by: Rémy Coutable <remy@rymai.me>
Approved-by: Jonathan Schafer <jschafer@gitlab.com>
Approved-by: Rémy Coutable <remy@rymai.me>
Reviewed-by: Rémy Coutable <remy@rymai.me>
Co-authored-by: Michał Zając <mzajac@gitlab.com>