feat: GA MetricKit integration (#3340)

Remove experimental note on options to make the MetricKit
integration GA.

Fixes GH-2585

Author: philipphofmann

CHANGELOG.md

@@ -1,5 +1,16 @@
 # Changelog
 
+## Unreleased
+
+### Features
+
+- GA of MetricKit integration (#3340)
+
+Once enabled, this feature subscribes to [MetricKit's](https://developer.apple.com/documentation/metrickit) [MXDiagnosticPayload](https://developer.apple.com/documentation/metrickit/mxdiagnosticpayload) data, converts it to events, and sends it to Sentry.
+The MetricKit integration subscribes to [MXHangDiagnostic](https://developer.apple.com/documentation/metrickit/mxhangdiagnostic),
+[MXDiskWriteExceptionDiagnostic](https://developer.apple.com/documentation/metrickit/mxdiskwriteexceptiondiagnostic),
+and [MXCPUExceptionDiagnostic](https://developer.apple.com/documentation/metrickit/mxcpuexceptiondiagnostic).
+
 ## 8.13.1
 
 ### Fixes

Sources/Sentry/Public/SentryOptions.h

@@ -457,7 +457,8 @@ NS_SWIFT_NAME(Options)
 #if SENTRY_HAS_METRIC_KIT
 
 /**
- * @warning This is an experimental feature and may still have bugs.
+ * Use this feature to enable the Sentry MetricKit integration.
+ *
  * @brief When enabled, the SDK sends @c MXDiskWriteExceptionDiagnostic, @c MXCPUExceptionDiagnostic
  * and
  * @c MXHangDiagnostic to Sentry. The SDK supports this feature from iOS 15 and later and macOS 12