ipatests: fix healthcheck test without DNS
ipa-healthcheck has added a new check for ipa-ca record
missing. The test needs to be adapted to handle the new check.
Fixes: https://pagure.io/freeipa/issue/9459
Signed-off-by: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>