Set builder.OnlyMetadata back for Secrets (#2625)

Signed-off-by: shuheiktgw <s-kitagawa@mercari.com>

pkg/controllers/externalsecret/externalsecret_controller.go

@@ -31,6 +31,7 @@ import (
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/record"
 	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/builder"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/controller"
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
@@ -603,6 +604,6 @@ func (r *Reconciler) SetupWithManager(mgr ctrl.Manager, opts controller.Options)
 	return ctrl.NewControllerManagedBy(mgr).
 		WithOptions(opts).
 		For(&esv1beta1.ExternalSecret{}).
-		Owns(&v1.Secret{}).
+		Owns(&v1.Secret{}, builder.OnlyMetadata).
 		Complete(r)
 }