update flutter version for workflow (test)

Author: dotsem

.github/workflows/workflow.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
         with:
-          flutter-version: stable
+          flutter-version: 3.29.0
 
       - name: Install dependencies
         run: flutter pub get