TalkBack doesn't announce invalid radio buttons

# 🐛 Bug Report

TalkBack doesn't announce radio buttons within a radio group w/ aria-invalid="true" applied to it. https://a11ysupport.io/tech/aria/aria-invalid_attribute seems to indicate that this is not just limited to inputs of type radio for TalkBack.

## 🤔 Expected Behavior

TalkBack should announce radio buttons as invalid

## 😯 Current Behavior

TalkBack doesn't announce radio buttons as invalid

## 💁 Possible Solution

May not be one, look to see if there is a bug filed against TalkBack. If no bug exists, file one.

## 🌍 Your Environment

| Software | Version(s) |
| ---------------- | ---------- |
| react-spectrum | 3.14.1
| Browser |
| Operating System |

## 🧢 Your Company/Team

RSP

## 🕷 Tracking Issue (optional)

Start by reproducing the radio-group behavior with aria-invalid="true" in react-spectrum 3.14.1 using TalkBack, filling in the missing browser and operating-system details. Compare the behavior with the aria-invalid guidance at a11ysupport.io; done means determining whether a project change is possible or whether the issue belongs in TalkBack, then documenting or filing that external bug.

Written by the indexing model from the issue text.