feat(apple): Make performanceV2 stable (#11913)

Author: philipphofmann

docs/platforms/apple/common/tracing/instrumentation/automatic-instrumentation.mdx

@@ -423,13 +423,7 @@ If a call to `reportFullyDisplayed()` happens before the view controller appears
 
 ## Performance V2
 
-<Note>
-
-This feature is experimental and may have bugs.
-
-</Note>
-
-_(New in version 8.18.0)_
+_(New in version 8.18.0), stable since 8.42.0._
 
 We're working to update our **Performance** product offering in order to be able to provide better insights and highlight specific actions you can take to improve your mobile app's overall performance. The `performanceV2` option changes the following behavior: