Merge pull request kubernetes#76640 from george-angel/master

update k8s.gcr.io/k8s-dns-node-cache image version

Author: k8s-ci-robot

cluster/addons/dns/nodelocaldns/nodelocaldns.yaml

@@ -111,7 +111,7 @@ spec:
         operator: "Exists"
       containers:
       - name: node-cache
-        image: k8s.gcr.io/k8s-dns-node-cache:1.15.0
+        image: k8s.gcr.io/k8s-dns-node-cache:1.15.1
         resources:
           limits:
             memory: 30Mi