Move act to wrap the event

Author: rickhanlonii

packages/react-dom/src/__tests__/ReactDOMHooks-test.js

@@ -134,15 +134,13 @@ describe('ReactDOMHooks', () => {
     Scheduler.unstable_flushAll();
 
     inputRef.current.value = 'abc';
-    inputRef.current.dispatchEvent(
-      new Event('input', {
-        bubbles: true,
-        cancelable: true,
-      }),
-    );
-
     await act(async () => {
-      Scheduler.unstable_flushAll();
+      inputRef.current.dispatchEvent(
+        new Event('input', {
+          bubbles: true,
+          cancelable: true,
+        }),
+      );
     });
 
     expect(labelRef.current.innerHTML).toBe('abc');