Try with suggestion from actions/runner-images@9811

Author: michael-jabbour-sonarsource

.github/workflows/build.yml

@@ -15,6 +15,7 @@ jobs:
           fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
       - name: Check SDK version
         run: |
+          sudo xcode-select -s /Library/Developer/CommandLineTools
           xcrun --show-sdk-version
       - name: Install Build Wrapper
         uses: SonarSource/sonarqube-scan-action/install-build-wrapper@v4
@@ -27,6 +28,7 @@ jobs:
           xcodebuild test -project macos-xcode.xcodeproj -scheme test2 -enableCodeCoverage YES -derivedDataPath build
       - name: Collect coverage into one XML report
         run: |
+          sudo xcode-select -s /Library/Developer/CommandLineTools
           bash xccov-to-generic.sh build/Logs/Test/*.xcresult/ > generic-coverage.xml
       - name: SonarQube Scan
         uses: SonarSource/sonarqube-scan-action@v4