jconde/guardian-refactor

Hi team! 👋

Sometime ago we moved to provision guardian with its own provisioning job. We have found that using univention-keycloak, we cannot create public clients and some other needs. Thus, we are rolling back the change until we have a better keycloak provisioning in place.

At the same time, some changes were made to the secret handling, and services have been fixed upstream.

Guardian has been tested to work with these changes.

Thanks in advance 😄