feat(iot): Add PSS labels

apps/base/iot/namespace.yaml

@@ -2,6 +2,13 @@ apiVersion: v1
 kind: Namespace
 metadata:
   name: iot
+  labels:
+    pod-security.kubernetes.io/audit: restricted
+    pod-security.kubernetes.io/enforce: restricted
+    pod-security.kubernetes.io/warn: restricted
+    pod-security.kubernetes.io/audit-version: latest
+    pod-security.kubernetes.io/enforce-version: latest
+    pod-security.kubernetes.io/warn-version: latest
 ---
 apiVersion: v1
 kind: ServiceAccount