Upgrade to Xcode 16.4 for iOS build

Author: YogendraShelke

.github/workflows/ios-build-custom-dev-app.yml

@@ -13,9 +13,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - name: switch XCode to 15.4
+      - name: switch XCode to 16.4
         run: | 
-          sudo xcode-select -s /Applications/Xcode_15.4.app
+          sudo xcode-select -s /Applications/Xcode_16.4.app
 
       - name: update bundle identifier in Dev config
         shell: bash