onChange not triggering in HexAlphaColorPicker through RGB slider.

**issue:**
onChange is not triggering on the drag of the RGB slider but is being triggered when dragged over the canvas and alpha slider. 
It will start triggering events once the change has been made from the big canvas.

video link: https://nimb.ws/Qwp1gk

**code:**
https://codesandbox.io/p/sandbox/react-colorful-demo-forked-kw3yfp?file=%2Fsrc%2FApp.js
