Update ClusterRole To Allow Updating Events

Based on feedback during code review it was recommended to allow
updating events in addition to creating events. Because event proceeding
logic on the client side sometimes updates existing events instead of
creating a new one.

kubernetes/rbac.yaml

@@ -7,7 +7,7 @@ metadata:
 rules:
 - apiGroups: [""]
   resources: ["events"]
-  verbs: ["create"]
+  verbs: ["create", "update"]
 - apiGroups: [""]
   resources: ["nodes"]
   verbs: ["get", "watch", "list"]