fix(chart): refine validationwebhookconfig rbac

Signed-off-by: Zespre Chang <[email protected]>

chart/templates/rbac.yaml

@@ -41,7 +41,7 @@ metadata:
 rules:
 - apiGroups: [ "admissionregistration.k8s.io" ]
   resources: [ "validatingwebhookconfigurations", "mutatingwebhookconfigurations" ]
-  verbs: [ "*" ]
+  verbs: [ "list", "update", "create" ]
 - apiGroups: [ "apiextensions.k8s.io" ]
   resources: [ "customresourcedefinitions" ]
   verbs: [ "get", "watch", "list" ]