fix dependency issue

kubernetes/apps/cert-manager/cert-manager.yaml

@@ -14,6 +14,8 @@ spec:
   dependsOn:
     - name: repositories
       namespace: flux-system
+    - name: cert-manager
+      namespace: flux-system
   decryption:
     provider: sops
     secretRef:
@@ -21,6 +23,25 @@ spec:
 ---
 apiVersion: kustomize.toolkit.fluxcd.io/v1
 kind: Kustomization
+metadata:
+  name: cert-manager
+  namespace: flux-system
+spec:
+  interval: 1h
+  targetNamespace: cert-manager
+  path: ./kubernetes/templates/apps/cert-manager/app
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    namespace: flux-system
+    name: flux-system
+  postBuild:
+    substituteFrom:
+      - kind: Secret
+        name: cert-manager-secrets
+---
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
 metadata:
   name: cert-manager-issuers
   namespace: flux-system