"create-cluster-and-infraenv.service" fails during Agent Based Installation

Issue

• During Agent Based Installation on Bare Metal, the create-cluster-and-infraenv.service is failing with the below mentioned error:

May 30 21:03:48 master0 podman[4489]: time="2023-05-30T21:03:48Z" level=fatal msg="Failed to register cluster with assisted-service: response status code does not match any response statuses defined for this endpoint in the swagger spec (status 503): {}"
May 30 21:04:08 master0 systemd[1]: create-cluster-and-infraenv.service: Failed with result 'exit-code'.
May 30 21:04:08 master0 systemd[1]: Failed to start Service that creates initial cluster and infraenv.