test: fix e2e (#4390)

tests/affine-local/e2e/exception-page.spec.ts

@@ -3,6 +3,6 @@ import { expect } from '@playwright/test';
 
 test('visit 404 page', async ({ page }) => {
   await page.goto('http://localhost:8080/404');
-  const notFoundTip = page.locator('[data-testid=notFound]');
+  const notFoundTip = page.getByTestId('not-found');
   await expect(notFoundTip).toBeVisible();
 });