update github workflow

Author: amitamrutiya

.github/workflows/dart.yml

@@ -19,6 +19,7 @@ jobs:
         with:
           flutter-version: '3.10.5'
       - run: flutter pub get
+      - run: flutter gen-l10n --arb-dir=lib/l10n/arb
       - run: flutter analyze
       - run: dart format --output=none --set-exit-if-changed .
       - run: flutter test