🚀 Feature Request: add state countdown to useAutoRequest

[JOU-amjs]

What problem does the new feature need to solve?

render countdown number when enable polling request, such as qrcode refresh countdown.

How should the new features you expect looks like?

const { countdown } = useAutoRequest(getXXX, {
  pollingTime: 60 * 1000
});

set setInterval timer only when pollingTime is set.

How important is it to you?

Can make it easier to develop