ci(apple): bump Xcode to build nightlies

Author: tido64

.github/workflows/build.yml

@@ -160,6 +160,7 @@ jobs:
           platform: ios
           project-root: example
           cache-key-prefix: example
+          xcode-developer-dir: /Applications/Xcode_16.4.app/Contents/Developer
       - name: Set up react-native@nightly
         if: ${{ github.event_name == 'schedule' }}
         uses: ./.github/actions/setup-react-native
@@ -218,6 +219,7 @@ jobs:
           platform: ios
           project-root: example
           cache-key-prefix: template-${{ matrix.template }}
+          xcode-developer-dir: /Applications/Xcode_16.4.app/Contents/Developer
       - name: Initialize test app
         uses: ./.github/actions/init-test-app
         with:
@@ -351,6 +353,7 @@ jobs:
           platform: macos
           project-root: example
           cache-key-prefix: example
+          xcode-developer-dir: /Applications/Xcode_16.4.app/Contents/Developer
       - name: Set up react-native@canary
         if: ${{ github.event_name == 'schedule' }}
         uses: ./.github/actions/setup-react-native
@@ -409,6 +412,7 @@ jobs:
           platform: macos
           project-root: example
           cache-key-prefix: template-${{ matrix.template }}
+          xcode-developer-dir: /Applications/Xcode_16.4.app/Contents/Developer
       - name: Initialize test app
         uses: ./.github/actions/init-test-app
         with: