As a result of https://review.opendev.org/c/openstack/kolla-ansible/+/805449
CI is failing, because we don't have a TLS certificate on our registry.

This workaround will get our CI to be green while a proper patch
(TLS certs for registry) can be worked out.

Change-Id: Ia45c8a764a1f87d1c44717c4da3b9a3f94cdc967