fix(traefik): add substituteFrom config map and secrets

kubernetes/common/apps/traefik/ks.yaml

@@ -16,6 +16,13 @@ spec:
     provider: sops
     secretRef:
       name: sops-gpg
+  postBuild:
+    substitute: {}
+    substituteFrom:
+      - kind: ConfigMap
+        name: cluster-settings
+      - kind: Secret
+        name: cluster-secrets
 ---
 # yaml-language-server: $schema=https://kubernetes-schemas.pages.dev/kustomize.toolkit.fluxcd.io/kustomization_v1.json
 apiVersion: kustomize.toolkit.fluxcd.io/v1
@@ -38,3 +45,10 @@ spec:
   dependsOn:
   - name: traefik
     namespace: flux-system
+  postBuild:
+    substitute: {}
+    substituteFrom:
+      - kind: ConfigMap
+        name: cluster-settings
+      - kind: Secret
+        name: cluster-secrets