大幅変更＆環境バージョンアップ

plugin/qr_code_scanner/.github/workflows/dart.yml

@@ -0,0 +1,24 @@
+name: dart
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '11'
+      - uses: subosito/flutter-action@v2.10.0
+      - name: Version
+        run: flutter doctor -v
+      - name: Install dependencies
+        run: flutter pub get
+      - name: Format
+        run: dart format --set-exit-if-changed .
+      - name: Linter
+        run: flutter analyze