aria-describedby not respected

Are you reporting a bug or runtime error? -> BUG

react-select doesn't respect aria-describedby as prop. This results in for errors not being pronounced by screen readers when focusing back on the field.

    <AsyncSelect
      onChange={handleSelect}
      loadOptions={loadOptions}
      placeholder={placeholder}
      inputId={id}
      aria-describedby="id-of-another-element"
    />

Example:
https://codesandbox.io/s/react-select-v5-sandbox-forked-i1vu1l

Reproduce the issue with the linked CodeSandbox using AsyncSelect and aria-describedby, then trace how the prop is handled before the focusable input is rendered. Done means the referenced element is associated with the input and its content is available to screen readers when focus returns to the field, with a regression test covering the behavior.