add checking if state is failed for arc

.pipelines/azure-pipeline-build.yml

@@ -967,7 +967,8 @@ jobs:
         for i in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
           do
             state=$(az k8s-extension show --name azuremonitor-metrics --cluster-name ci-dev-arc-wcus --resource-group ci-dev-arc-wcus --cluster-type connectedClusters | jq -r '.provisioningState')
-            if [ $state = "Succeeded" ]
+            # We want to wait in case the status is 'Creating' or 'Updating' because of another PR merged shortly before the current one.
+            if [ "$state" = "Succeeded" ] || [ "$state" = "Failed" ]
             then
               echo "Cluster is ready to install extension"
               exit 0