Update CI configuration

.github/workflows/ci.yml

@@ -2,24 +2,24 @@ name: CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [master]
   pull_request:
-    branches: [ master ]
+    branches: [master]
 
 jobs:
   test:
     runs-on: ubuntu-latest
-    
+
     steps:
       - uses: actions/checkout@v2
 
-      - uses: actions/setup-java@v1
-        with:
-          java-version: '12.x'
+      # - uses: actions/setup-java@v1
+      #   with:
+      #     java-version: "12.x"
 
       - uses: subosito/flutter-action@v1
         with:
-          flutter-version: '2.2.x'
+          flutter-version: "3.3.x"
 
       - name: Install dependencies
         run: flutter pub get
@@ -33,4 +33,3 @@ jobs:
 
       - name: Run tests
         run: flutter test
-