ipatests: hiddenreplica: use wait_for_ipa_to_start after restore

Use wait_for_ipa_to_start to wait until the restored replica is online.

Related: https://pagure.io/freeipa/issue/8534
Signed-off-by: François Cami <fcami@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Mohammad Rizwan Yusuf <myusuf@redhat.com>

ipatests/test_integration/test_replica_promotion.py

@@ -1030,6 +1030,9 @@ class TestHiddenReplicaPromotion(IntegrationTest):
             stdin_text=dirman_password + '\nyes'
         )
 
+        # wait for the replica to be available
+        tasks.wait_for_ipa_to_start(self.replicas[0])
+
         # give replication some time
         time.sleep(5)
         tasks.kinit_admin(self.replicas[0])