fix pointer dereference in memory registry

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

registry/memory/util.go

@@ -44,9 +44,9 @@ func recordToService(r *record) *registry.Service {
 	endpoints := make([]*registry.Endpoint, len(r.Endpoints))
 	for i, e := range r.Endpoints {
 		request := new(registry.Value)
-		request = e.Request
+		*request = *e.Request
 		response := new(registry.Value)
-		response = e.Response
+		*response = *e.Response
 
 		metadata := make(map[string]string)
 		for k, v := range e.Metadata {