Make clippy happy

packages/core/tests/task.rs

@@ -36,7 +36,7 @@ async fn it_works() {
             });
         });
 
-        rsx!({ () })
+        rsx!({})
     }
 
     run_vdom(app).await;
@@ -76,7 +76,7 @@ async fn yield_now_works() {
             })
         });
 
-        rsx!({ () })
+        rsx!({})
     }
 
     run_vdom(app).await;
@@ -110,7 +110,7 @@ async fn flushing() {
             })
         });
 
-        rsx!({ () })
+        rsx!({})
     }
 
     let mut dom = VirtualDom::new(app);