it: test cursor-shape protocol

src/it/test_transport.rs

@@ -62,6 +62,7 @@ impl TestTransport {
             activation: Default::default(),
             foreign_toplevel_list: Default::default(),
             data_device_manager: Default::default(),
+            cursor_shape_manager: Default::default(),
             seats: Default::default(),
         });
         self.send(wl_display::GetRegistry {