Button announces multiple times when status changes to isPending

[majornista]

Provide a general summary of the issue here

Following on #5245, Button announces more than once when the status changes to isPending={true} using Firefox with NVDA or JAWS.

🤔 Expected Behavior?

Button should not announce more than once when the status changes to isPending={true}.

😯 Current Behavior

Button announces more than once when the status changes to isPending={true} with NVDA and JAWS.

💁 Possible Solution

No response

🔦 Context

No response

🖥️ Steps to Reproduce

1. Open https://reactspectrum.blob.core.windows.net/reactspectrum/88c4d560d552d6d911a71396759f9088b1df2199/storybook/index.html?path=/story/button--pending-spinner&providerSwitcher-express=false example in Firefox on Windows using JAWS or NVDA.
2. Press any of the isPending button examples.
3. When the button enters the pending state, the screen reader announces the button name and "pending" more than once.

Version

9d8c74a

What browsers are you seeing the problem on?

Firefox, Chrome, Safari, Microsoft Edge

If other, please specify.

No response

What operating system are you using?

Windows, macOS

🧢 Your Company/Team

Adobe/Accessibility

🕷 Tracking Issue

No response