fix rbac role for platform engineer cron seed

platform-engineer/rbac.yaml

@@ -25,3 +25,17 @@ rules:
   - apiGroups: [""]
     resources: ["pods/exec"]
     verbs: ["create"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: cron-seeder
+  namespace: platform-engineer
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: cron-seeder
+subjects:
+  - kind: ServiceAccount
+    name: cron-seeder
+    namespace: platform-engineer