ipatests: mark test_ipahealthcheck_hidden_replica as expected failure

test_ipahealthcheck_hidden_replica fails due to:
https://pagure.io/freeipa/issue/8582
Mark it as expected failure.

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

@@ -905,6 +905,9 @@ class TestHiddenReplicaPromotion(IntegrationTest):
         self._check_dnsrecords([self.master], [self.replicas[0]])
         self._check_config([self.master], [self.replicas[0]])
 
+    @pytest.mark.xfail(
+        reason='https://pagure.io/freeipa/issue/8582', strict=True
+    )
     def test_ipahealthcheck_hidden_replica(self):
         """Ensure that ipa-healthcheck runs successfully on all members
         of an IPA cluster that includes a hidden replica.