Upgrade snapshot controller to 3.0.0

Author: saikat-royc

cluster/addons/volumesnapshots/volume-snapshot-controller/volume-snapshot-controller-deployment.yaml

@@ -22,6 +22,6 @@ spec:
       serviceAccount: volume-snapshot-controller
       containers:
         - name: volume-snapshot-controller
-          image: k8s.gcr.io/sig-storage/snapshot-controller:v2.1.1
+          image: k8s.gcr.io/sig-storage/snapshot-controller:v3.0.0
           args:
             - "--v=5"