Network iOS xcode15.0 b5

#Network.framework https://github.com/xamarin/xamarin-macios/pull/19418

diff -ruN /Applications/Xcode_15.0.0-beta4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/Network.framework/Headers/proxy_config.h /Applications/Xcode_15.0.0-beta5.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/Network.framework/Headers/proxy_config.h
--- /Applications/Xcode_15.0.0-beta4.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/Network.framework/Headers/proxy_config.h	2023-06-24 03:34:31
+++ /Applications/Xcode_15.0.0-beta5.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/System/Library/Frameworks/Network.framework/Headers/proxy_config.h	2023-07-15 01:37:07
@@ -135,7 +135,8 @@
  *		The HTTP path to use for requests to the Oblivious HTTP relay that will forward requests to the gateway.
  *
  * @param gateway_key_config
- *		The key configuration bytes for the Oblivious HTTP gateway.
+ *		The key configuration for the Oblivious HTTP gateway, or a list of key configurations where each configuration
+ *		is prefixed with a two-byte length in network byte order.
  *
  * @param gateway_key_config_length
  *		The length of the buffer in `gateway_key_config`.