updated workflow

Author: alex-melnyk

.github/workflows/main.yml

@@ -11,10 +11,15 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: '3.13.0'
+          channel: 'stable'
       - name: Publish
         uses: sakebook/[email protected]
         with:
           credential: ${{ secrets.CREDENTIAL_JSON }}
           flutter_package: true
           skip_test: true
-          dry_run: false
+          dry_run: true