test: keep react testing event behavior

Author: afc163

tests/index.test.tsx

@@ -1,5 +1,4 @@
-import { fireEvent } from '@testing-library/dom';
-import { render, waitFor } from '@testing-library/react';
+import { fireEvent, render, waitFor } from '@testing-library/react';
 import React from 'react';
 import MutateObserver from '../src';