Move useTag ref from props to it's own parameter

[reidbarber]

From audit

✅ 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:

[rspbot]

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## API Changes

unknown top level export { type: 'identifier', name: 'Column' }
unknown top level export { type: 'identifier', name: 'Column' }
unknown type { type: 'link' }
unknown type { type: 'link' }
unknown type { type: 'link' }
unknown type { type: 'link' }
unknown type { type: 'link' }
unknown type { type: 'link' }

@react-aria/tag

useTag

 useTag<T> {
   props: TagProps<T>
   state: TagGroupState<T>
+  ref: RefObject<FocusableElement>
   returnVal: undefined
 }

TagProps

 TagProps<T> {
   allowsRemoving?: boolean
   isFocused: boolean
   item: Node<T>
   onRemove?: (Key) => void
-  tagRowRef: RefObject<HTMLElement>
 }

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