ci: use xcode 16.4 for wda backage job (#1104)

Author: KazuCocoa

.github/workflows/wda-package.yml

@@ -9,7 +9,7 @@ on:
 
 env:
   HOST: macos-15
-  XCODE_VERSION: 16.3
+  XCODE_VERSION: 16.4
   DESTINATION_SIM: platform=iOS Simulator,name=iPhone 17
   DESTINATION_SIM_tvOS: platform=tvOS Simulator,name=Apple TV 4K (3rd generation)