Merge pull request kubernetes#77357 from dekkagaijin/md-proxy-bump

Bump metadata-proxy image to v0.1.12

Author: k8s-ci-robot

cluster/addons/metadata-proxy/gce/metadata-proxy.yaml

@@ -48,7 +48,7 @@ spec:
         effect: "NoSchedule"
       containers:
       - name: metadata-proxy
-        image: k8s.gcr.io/metadata-proxy:v0.1.11
+        image: k8s.gcr.io/metadata-proxy:v0.1.12
         securityContext:
           privileged: true
         # Request and limit resources to get guaranteed QoS.