NetworkExtension macOS xcode16.1 b3

#NetworkExtension.framework https://github.com/xamarin/xamarin-macios/pull/21518

diff -ruN /Applications/Xcode_16.1.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/NetworkExtension.framework/Headers/NEProvider.h /Applications/Xcode_16.1.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/NetworkExtension.framework/Headers/NEProvider.h
--- /Applications/Xcode_16.1.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/NetworkExtension.framework/Headers/NEProvider.h	2024-09-08 22:46:26
+++ /Applications/Xcode_16.1.0-beta3.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/NetworkExtension.framework/Headers/NEProvider.h	2024-09-23 00:40:38
@@ -57,6 +57,8 @@
 	NEProviderStopReasonSleep API_AVAILABLE(macos(10.15), ios(13.0), tvos(17.0)) = 15,
 	/*! @const NEProviderStopReasonAppUpdate The NEProvider is being updated */
 	NEProviderStopReasonAppUpdate API_AVAILABLE(macos(10.15), ios(13.0), tvos(17.0)) = 16,
+	/*! @const NEProviderStopReasonInternalError */
+	NEProviderStopReasonInternalError API_AVAILABLE(macos(15.1), ios(18.1), tvos(18.1)) = 17,
 } API_AVAILABLE(macos(10.11), ios(9.0), tvos(17.0)) API_UNAVAILABLE(watchos);
 
 /*!