feat: migrate namespaces

cluster/base/infra.yaml

@@ -1,10 +1,28 @@
 ---
 apiVersion: kustomize.toolkit.fluxcd.io/v1
 kind: Kustomization
+metadata:
+  name: infra-namespaces
+  namespace: flux-system
+spec:
+  interval: 1h0m0s
+  path: ./infra/namespaces
+  prune: true
+  retryInterval: 1m0s
+  sourceRef:
+    kind: GitRepository
+    name: flux-system
+  timeout: 5m0s
+  wait: true
+---
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
 metadata:
   name: infra-controllers
   namespace: flux-system
 spec:
+  dependsOn:
+  - name: infra-namespaces
   interval: 1h0m0s
   path: ./infra/controllers
   prune: true