The subscribe function should return a function that cleans up the subscription

[huen2015]

useSyncExternalStore(subscribe, getSnapshot, getServerSnapshot)
The subscribe function should return a function that cleans up the subscription

• bubucuo/redux-nut/blob/main/src/react-redux-nut/index.js#L56

• bubucuo/redux-nut/blob/main/src/react-redux-nut/index.js#L95

• line 56 and 95 in 3f938ef