Merge branch 'tmike-vuln-create-identifiers-500' into 'master'

Add validation for vulnerability identifiers

Closes #373760

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/160011



Merged-by: Eugenia Grieff <egrieff@gitlab.com>
Approved-by: Eugenia Grieff <egrieff@gitlab.com>
Co-authored-by: Michael Trainor <mtrainor@gitlab.com>