[webhooks] fix rbac (#69)

Signed-off-by: Pavel Karpov <[email protected]>

Author: krpsh123

templates/webhooks/rbac-for-us.yaml

@@ -22,6 +22,13 @@ rules:
       - update
       - list
       - patch
+  - apiGroups:
+      - storage.deckhouse.io
+    resources:
+      - nfsstorageclasses
+    verbs:
+      - get
+      - list
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding