This allows us to add the build-wheel-mirror jobs to
openstack/requirements check pipelines, but not release wheels to afs.
Making it easier to properly debug these jobs, otherwise an infra-root
must manually enqueue-ref for periodic pipeline.
Change-Id: Iabedbfeb62f1773d10462e8b07bbe82f1fb76389
Signed-off-by: Paul Belanger <pabelanger@redhat.com>