fix: manifest dependencies before install

this is important for external secrets / storage / networking

internal/github/repository.go

@@ -43,6 +43,10 @@ metadata:
   name: namespaces
   namespace: flux-system
 spec:
+  dependsOn:
+    - name: vault-instance
+    - name: democratic-csi
+    - name: metallb-config
   interval: 10m
   path: ./namespaces
   prune: true