chore(KFLUXSPRT-3661): Add namespace expression konflux-user-support (#7414)

Author: Kousalya1998

components/monitoring/prometheus/base/monitoringstack/monitoringstack.yaml

@@ -230,6 +230,9 @@ spec:
         - '{__name__="kube_deployment_status_replicas_available", namespace="openshift-kube-apiserver"}'
         - '{__name__="kube_deployment_spec_replicas", namespace="openshift-kube-apiserver"}'
 
+        # Namespace (expression):  "konflux-user-support"
+        - '{__name__="kube_deployment_status_replicas_available", namespace="konflux-user-support"}'    
+
         - '{__name__="argocd_app_reconcile_bucket", namespace="gitops-service-argocd"}'
         - '{__name__="argocd_app_info", namespace="gitops-service-argocd"}'
         - '{__name__="container_cpu_usage_seconds_total", namespace="release-service"}'