tests: Add ipa_ca_name checking to DNS system records
    
    freeipa-healthcheck 0.12 includes a SUCCESS message if the
    ipa-ca records are as expected so a user will know they
    were checked. For that version and beyond test that it
    is included.
    
    Related: https://pagure.io/freeipa/issue/9291
    
    Signed-off-by: Rob Crittenden <rcritten@redhat.com>
    Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>