Missing aria-required attribute

Hello, I'm currently implementing a form using React-Select and I've been told that the required attribute isn't coming through for screen-reader users. I've tried using MacOS's VoiceOver feature, and it seems that it reports it as "Combo box" along with the title, but doesn't mention required.

I saw that aria-required was listed in a large page of props here so I assumed it was part of the accepted props. Does React-Select support this attribute, or should I find another way to achieve this?

I've forked a codesandbox here, and as you can see when inspecting the dom, there are no aria-required attributes on any of the dom nodes

Start with the linked CodeSandbox and its example.js file, then inspect the rendered DOM and the component props involved in the select input. Confirm whether aria-required is supported and identify the expected behavior for screen readers; the issue is done when the required state is correctly exposed or the supported alternative is clearly established.