bumping setup-dart and flutter-action versions

Author: MonsieurRz

.github/workflows/dart.yml

@@ -23,12 +23,12 @@ jobs:
       # https://github.com/dart-lang/setup-dart/blob/main/README.md
       - uses: dart-lang/setup-dart@v1
         with:
-          sdk: 3.1.3
+          sdk: stable
 
-      - uses: subosito/flutter-action@v1
+      - uses: subosito/flutter-action@v2
         with:
           channel: 'stable'
-          flutter-version: 3.13.0
+          flutter-version: 3.19.0
 
       - name: Install dependencies
         run: flutter pub get