[特性]: 允许在测试超时时监听 `AbortSignal`

Naive implementation:

test('MyWritableStream should eventually process all records', async () => {
  const data: Iterable<unknown> = generateTooMuchTestData();  // too much to process
  const myWritableStream = new MyWritableStream();
  await Promise.all([
    pipeline(stream.Readable.from(data), myWritableStream);  // pipeline continues running
    runFakeTimersUntilStreamCloses(myWritableStream),
  ]);
  expect(new Set(myWritableStream.processedData)).toStrictEqual(new Set(data));
}, 1, /* not enough time */);

If the test times out, the pipeline continues running:

ReferenceError: You are trying to access a property or method of the Jest environment after it has been torn down. From lib/stream.spec.ts.

This ought to fix it, but seems like a kludge: