Merge branch '411984-add-unknown-license' into 'master'

Add Unknown license to Scan Result Policies

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/123565



Merged-by: Florie Guibert <fguibert@gitlab.com>
Approved-by: Martin Čavoj <mcavoj@gitlab.com>
Approved-by: Florie Guibert <fguibert@gitlab.com>
Reviewed-by: Martin Čavoj <mcavoj@gitlab.com>
Co-authored-by: Martin Čavoj <mcavoj@gitlab.com>
Co-authored-by: Alexander Turinske <aturinske@gitlab.com>
Co-authored-by: Alan (Maciej) Paruszewski <mparuszewski@gitlab.com>