Update gitreview file

Related-prod: PROD-22634

Change-Id: Ia2b8b342035df6aa67765527c1ccc7cec831dc65
(cherry picked from commit f79010bbbc04e88e278811f6b2d89eee78377792)
(cherry picked from commit bcfbe5392e4db29f0da156c566717b48aed56ebc)
diff --git a/.gitreview b/.gitreview
index 9c33d46..3e78d2e 100644
--- a/.gitreview
+++ b/.gitreview
@@ -1,5 +1,5 @@
-
 [gerrit]
-host=review.openstack.org
+host=gerrit.mcp.mirantis.com
 port=29418
-project=openstack/heat-tempest-plugin.git
+project=packaging/sources/heat-tempest-plugin.git
+defaultbranch=mcp/xenial/rocky