Revert ". e Don't set Xcode version"

This reverts commit 6abd4f5.

Author: jonreid

.github/workflows/sampleApp.yml

@@ -19,6 +19,8 @@ jobs:
     - uses: actions/checkout@v4
     - name: List available Xcode versions
       run: ls /Applications | grep Xcode
+    - name: Set up Xcode version
+      run: sudo xcode-select -s /Applications/Xcode_16.0.app/Contents/Developer
     - name: Show current version of Xcode
       run: xcodebuild -version
     - name: Run tests