use reusable workflow

.github/workflows/flutter_test.yaml

@@ -10,28 +10,11 @@ on:
   workflow_dispatch:
 
 jobs:
-  setup:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
-      - name: Set up Flutter
-        uses: subosito/flutter-action@v2
-        with:
-          channel: "stable"
-          flutter-version-file: pubspec.yaml
-
-      - name: Install dependencies
-        run: flutter pub get
-
   test:
-    needs: setup
     runs-on: ubuntu-latest
-
     steps:
+      - uses: ./.github/actions/setup-env.yaml
+
       # Debug: Echo current directory contents
       - name: List root directory contents
         run: |
@@ -53,12 +36,6 @@ jobs:
           echo "\nSubmodule details:"
           git submodule foreach 'echo $path: && pwd && ls -la'
 
-      - name: Decode android/upload.jks
-        run: echo "${{ secrets.UPLOAD_KEYSTORE_JKS }}" | base64 --decode > android/upload.jks
-
-      - name: Decode android/key.properties
-        run: echo "${{ secrets.KEY_PROPERTIES }}" | base64 --decode > android/key.properties
-
       - name: Run flutter tests
         run: flutter test
 
@@ -66,6 +43,14 @@ jobs:
     needs: test
     runs-on: ubuntu-latest
     steps:
+      - uses: ./.github/actions/setup-env.yaml
+
+      - name: Decode android/upload.jks
+        run: echo "${{ secrets.UPLOAD_KEYSTORE_JKS }}" | base64 --decode > android/upload.jks
+
+      - name: Decode android/key.properties
+        run: echo "${{ secrets.KEY_PROPERTIES }}" | base64 --decode > android/key.properties
+
       - name: Set Up Java
         uses: actions/setup-java@v3.12.0
         with: