feat(RAC): Automatic parent-child selection in Tree

[chirokas]

Closes #6589

✅ 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:

[J4v4Scr1pt]

@chirokas Great work, I was implementing this behavior my self but got stuck on that Tree don't update props from outside.
Was passing indeterminateKeys to my TreeItem component in the render method of Tree, Need to render with items.Map instead now and on large collections I see some performance decrease.

I don't want to rush you, but do you have any ETA on a merge?

Again great work lookin into this! 🥇