fix(CI): fix mobile build artifact with proper signing (#1504)

.github/workflows/build-mobile.yml

@@ -7,50 +7,47 @@ on:
   push:
     branches: [main]
 
-
 jobs:
   build-sign-android:
     name: Build and sign Android
-    runs-on: ubuntu-latest
-    
+    runs-on: macos-12
+
     steps:
       - uses: actions/checkout@v3
 
       - uses: actions/setup-java@v3
         with:
-          distribution: 'zulu'
+          distribution: "zulu"
           java-version: "12.x"
-          cache: 'gradle' 
+          cache: "gradle"
 
       - name: Setup Flutter SDK
         uses: subosito/flutter-action@v2
         with:
-          channel: 'stable'
-          flutter-version: '3.3.10'
+          channel: "stable"
+          flutter-version: "3.3.10"
           cache: true
 
       - name: Create the Keystore
-        
         env:
-          KEYSTORE_BASE64: ${{ secrets.ANDROID_SIGN_KEY_CONTENT }}
-        run: |
-          # import keystore from secrets
-          echo $KEYSTORE_BASE64 | base64 -d > $RUNNER_TEMP/my_production.keystore
+          KEY_JKS: ${{ secrets.KEY_JKS }}
+        working-directory: ./mobile
+        run: echo $KEY_JKS | base64 -d > android/key.jks
 
-      - name: Restore packages
+      - name: Get Packages
         working-directory: ./mobile
         run: flutter pub get
 
       - name: Build Android App Bundle
         working-directory: ./mobile
+        env:
+          ALIAS: ${{ secrets.ALIAS }}
+          ANDROID_KEY_PASSWORD: ${{ secrets.ANDROID_KEY_PASSWORD }}
+          ANDROID_STORE_PASSWORD: ${{ secrets.ANDROID_STORE_PASSWORD }}
         run: flutter build apk --release
 
-      - name: Sign Android App Bundle
-        working-directory: ./mobile
-        run: jarsigner -keystore $RUNNER_TEMP/my_production.keystore -storepass ${{ secrets.ANDROID_KEY_PASSWORD }} -keypass ${{ secrets.ANDROID_STORE_PASSWORD }} -sigalg SHA256withRSA -digestalg SHA-256 -signedjar build/app/outputs/apk/release/app-release-signed.apk build/app/outputs/apk/release/*.apk ${{ secrets.ALIAS }}
-
       - name: Publish Android Artifact
         uses: actions/upload-artifact@v3
         with:
           name: release-apk-signed
-          path: mobile/build/app/outputs/apk/release/app-release-signed.apk
+          path: mobile/build/app/outputs/flutter-apk/app-release.apk