Merge branch '431633-add-grouping-to-group-report' into 'master'

Enable group level vulnerability report grouping

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/137778



Merged-by: David Pisek <dpisek@gitlab.com>
Approved-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Approved-by: Gregory Havenga <11164960-ghavenga@users.noreply.gitlab.com>
Approved-by: Becka Lippert <rlippert@gitlab.com>
Approved-by: David Pisek <dpisek@gitlab.com>
Reviewed-by: David Pisek <dpisek@gitlab.com>
Reviewed-by: Lorenz van Herwaarden <lvanherwaarden@gitlab.com>
Co-authored-by: Savas Vedova <svedova@gitlab.com>
Co-authored-by: DANGER_GITLAB_API_TOKEN <project_278964_bot_e50c5a74c24642c571054e7c8aedefc4@noreply.gitlab.com>