Add compat tests against "v3-X-test" branch tip for providers. #54454
Description
Currently we run compat tests against released versions of airflow, but we do not run them against the v3-X-test branch tip - so we really do not know if providers are working against the "future" patchlevel released from that branch. We should be able to easily add those tests - we have now option to install airflow from any branch in breeze (see #54070) so it should be rather straightforward.