feat(k8s): update deployment metadata and adjust GitRepository path in flux-instance.yaml

flux/clusters/dev-cm/patches/kube-system.yaml

@@ -8,6 +8,10 @@ spec:
         kind: Deployment
         name: "(coredns|local-path-provisioner|metrics-server)"
       patch: |
+        apiVersion: apps/v1
+        kind: Deployment
+        metadata:
+          name: placeholder
         spec:
           template:
             spec: