ad debug statement to get dart version

Author: JulianBissekkou

.github/workflows/on_push.yml

@@ -22,6 +22,7 @@ jobs:
       - uses: subosito/flutter-action@v2
         with:
           channel: 'stable'
+      - run: ./am dart --version
       - run: ./am format --verify
 
   test: