feat: add test for improvement of collections in React transitions

[nwidynski]

Closes #8204 (comment)

Essentially, React would call our appendChild to update the fake DOM, we'd trigger the useSyncExternalStore subscription, and React would interrupt itself and start over.

When React starts over, it causes Table to invoke its render function again, which we can spy on reliably.

✅ Pull Request Checklist:

• Included link to corresponding React Spectrum GitHub Issue.
• Added/updated unit tests and storybook for this change (for new code or code which already has tests).
• Filled out test instructions.
• Updated documentation (if it already exists for this component).
• Looked at the Accessibility Practices for this feature - Aria Practices

📝 Test Instructions:

🧢 Your Project:

[LFDanLu]

LGTM, verified the test caught the excess renders when reverting #8204, thanks!