kube-prometheus: update kube-state-metrics to latest release

manifests/kube-state-metrics/kube-state-metrics-deployment.yaml

@@ -12,7 +12,7 @@ spec:
       serviceAccountName: kube-state-metrics
       containers:
       - name: kube-state-metrics
-        image: gcr.io/google_containers/kube-state-metrics:v0.4.1
+        image: quay.io/coreos/kube-state-metrics:v0.5.0
         ports:
         - name: metrics
           containerPort: 8080