Apply suggestion from @benoit-pierre

Author: benoit-pierre

.github/workflows/build.yml

@@ -46,7 +46,7 @@ jobs:
       - name: Build
         run: |
           # Ensure the build fail if gradle tries to install/update an SDK package.
-          # echo 'android.builder.sdkDownload=false' >>gradle.properties
+          echo 'android.builder.sdkDownload=false' >>gradle.properties
           ./gradlew app:assembleArmRocks${{ matrix.variant }}
 
       # }}}