fix: RBAC config

example/deploy.yaml

@@ -2,11 +2,13 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: cron-checker
+  namespace: kube-system
 ---
 kind: ClusterRole
 apiVersion: rbac.authorization.k8s.io/v1
 metadata:
   name: cron-checker
+  namespace: kube-system
 rules:
   - apiGroups: ["", "batch"]
     resources: ["cronjobs"]
@@ -17,6 +19,7 @@ apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: cron-checker
+  namespace: kube-system
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
@@ -24,6 +27,7 @@ roleRef:
 subjects:
   - kind: ServiceAccount
     name: cron-checker
+    namespace: kube-system
 ---
 
 apiVersion: apps/v1