[Cephadm] `ceph mgr services` command returns Ceph-Dashboard and Prometheus URL with IP instead of FQDN after upgrading to RHCS 5

Issue

• ceph mgr services command returns (Dashboard and Prometheus) URL with IP instead of FQDN after upgrading RHCS 4 to CEPH 5.3.

• Before the Upgrade (in RHCS 4.x):

  # ceph  mgr services
  {
    "dashboard": "https://mons-1.milvermaceph43.lab.psi.pnq2.redhat.com:8443/",
    "prometheus": "http://mons-1.milvermaceph43.lab.psi.pnq2.redhat.com:9283/"
  }
  

• After the Upgrade (in RHCS 5.x):

  # ceph  mgr services
  {
    "dashboard": "https://10.74.215.129:8443/",
    "prometheus": "http://10.74.215.129:9283/"
  }