Use availability guarded APIs under @available for Xcode development

[github-actions[bot]]

Time Change: +789.75ms (8%) 🔍

Total Time: 8,933.5ms

Test name	Duration	Change
Serialization/Swift Int to JavaScript	3,143ms	+673ms (21%)	🚨

ℹ️ View Unchanged

| Test name | Duration | Change | | :--- | :---: | :---: | | Serialization/Write JavaScript number directly | 171.5ms | +2ms (1%) | | Serialization/Write JavaScript string directly | 174ms | -1.75ms (1%) | | Serialization/Swift String to JavaScript | 2,633.75ms | +56.25ms (2%) | | Object heap/Increment and decrement RC | 2,811.25ms | +60.25ms (2%) |

_{performance-action}