[IDLE-000] CD Artifact v3 -> v4

Author: tgyuuAn

.github/workflows/android_cd.yml

@@ -69,7 +69,7 @@ jobs:
         run: ./gradlew bundleRelease --stacktrace
 
       - name: Upload AAB artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4   # ← 여기만 v3 → v4 로 변경
         with:
           name: app-release.aab
           path: app/build/outputs/bundle/release/app-release.aab
@@ -87,4 +87,4 @@ jobs:
           firebase appdistribution:distribute app/build/outputs/apk/release/app-release.apk \
           --app ${{ secrets.FIREBASE_APP_ID }} \
           --release-notes "~새로운 릴리즈 버전이 날라왔어용~" \
-          --groups "세얼간이"
+          --groups "세얼간이"