Update checks.yml

Author: suriksarkisyan

.github/workflows/checks.yml

@@ -19,7 +19,7 @@ jobs:
       - uses: subosito/flutter-action@v1
         name: Setup Flutter
         with:
-          flutter-version: '3.7.7'
+          flutter-version: '3.32.4'
           channel: 'stable'
       - run: flutter pub get
       - name: Validation