fix: package build workflow

.github/workflows/build.yml

@@ -22,9 +22,20 @@ jobs:
 
       - name: Install dependencies
         run: dart pub get
+
+      - name: Check format
+        run: dart format --set-exit-if-changed lib/
 
-      - name: Build library
-        run: dart compile exe bin/main.dart
+      - name: Analyze code
+        run: dart analyze lib/
+
+      - name: Setup Flutter
+        uses: subosito/flutter-action@v1
+        with:
+          channel: 'stable'
 
       - name: Build example app
-        run: dart compile exe example/main.dart
+        run: |
+          cd example/
+          flutter pub get
+          flutter build web --release

pubspec.yaml

@@ -16,12 +16,9 @@ topics:
 
 environment:
   sdk: '>=3.1.5 <4.0.0'
-  flutter: '>=1.17.0'
 
 dependencies:
   cross_file: ^0.3.3+6
-  flutter:
-    sdk: flutter
   http: ^1.1.0
   platform: ^3.1.3