fix: icon builder illustrations

[snowystinger]

Closes

Add some testing around the illustration builder

✅ 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]

Build successful! 🎉

• View the storybook
• View the S2 storybook
• View the documentation

[rspbot]

## API Changes

@react-aria/calendar

/@react-aria/calendar:AriaCalendarCellProps

 AriaCalendarCellProps {
   date: CalendarDate
   isDisabled?: boolean
-  isOutsideMonth?: boolean
 }

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@react-spectrum/s2

/@react-spectrum/s2:IllustrationProps

+IllustrationProps {
+  UNSAFE_className?: UnsafeClassName
+  UNSAFE_style?: CSSProperties
+  aria-describedby?: string
+  aria-details?: string
+  aria-hidden?: boolean | 'false' | 'true'
+  aria-label?: string
+  aria-labelledby?: string
+  id?: string
+  size?: 'S' | 'M' | 'L'
+  slot?: string | null
+  styles?: StyleString<AllowedOverrides>
+}

/@react-spectrum/s2:IllustrationContextValue

+IllustrationContextValue {
+  UNSAFE_className?: UnsafeClassName
+  UNSAFE_style?: CSSProperties
+  render?: (ReactNode) => ReactNode
+  size?: 'S' | 'M' | 'L'
+  slot?: string | null
+  styles?: StyleString
+}

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