Update rstest/rspack-adapter/tests/index.test.tsx

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: 9aoy

rstest/rspack-adapter/tests/index.test.tsx

@@ -5,5 +5,5 @@ import App from '../src/App';
 test('renders the main page', () => {
   const testMessage = 'Rspack + React + TypeScript';
   render(<App />);
-  expect(screen.getByText(testMessage)).toBeInTheDocument();
+  expect(screen.getByRole('heading', { name: testMessage })).toBeInTheDocument();
 });