Added flutter SDK to action instead of Dart.

Author: zinigor

.github/workflows/dart.yml

@@ -18,14 +18,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      # Note: This workflow uses the latest stable version of the Dart SDK.
-      # You can specify other versions if desired, see documentation here:
-      # https://github.com/dart-lang/setup-dart/blob/main/README.md
-      # - uses: dart-lang/setup-dart@v1
-      - uses: dart-lang/setup-dart@9a04e6d73cca37bd455e0608d7e5092f881fd603
+      - name: Setup Flutter SDK
+        uses: flutter-actions/setup-flutter@v4
+        with:
+          channel: stable
+          version: 3.32.2
 
       - name: Install dependencies
-        run: dart pub get
+        run: flutter pub get
 
       # Uncomment this step to verify the use of 'dart format' on each commit.
       # - name: Verify formatting