HexColorPicker + HexAlphaColorPicker have`aria-required-attr` accessibility issue

[ikerestes]

eslint-plugin-jsx-a11y that evaluates accessibility's issues in react applications is registering a violation on HexColorPicker and HexAlphaColorPicker components.

div[aria-label="Color"]
Critical
Required ARIA attribute not present: aria-valuenow

Required ARIA attributes must be provided

More info
https://dequeuniversity.com/rules/axe/4.7/aria-required-attr?application=axeAPI