fix: add onAction type to RAC TagGroup

[onx2]

Closes #9205

✅ 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:

onAction works for React Aria Component's TagGroup and is a valid group-level prop.

🧢 Your Project:

Weights & Biases component library (currently private)

[snowystinger]

spent a little time on this today, will have some things to resolve, noted as a code comment

[snowystinger]

Tested against ListBox, they behave the same, so this is approved