Upgrade Ruma

src/client_server/to_device.rs

@@ -54,7 +54,7 @@ pub async fn send_event_to_device_route(
                         DirectDeviceContent {
                             sender: sender_user.clone(),
                             ev_type: EventType::from(&*body.event_type),
-                            message_id: body.txn_id.to_string(),
+                            message_id: body.txn_id.clone(),
                             messages,
                         },
                     ))