ci: 优化Android APK构建环境

将 APK 构建任务切换到预装 Android SDK 的容器镜像，移除在线安装 SDK 步骤以提升稳定性并避免许可证管道失败。

Made-with: Cursor

.gitea/workflows/build.yml

@@ -95,6 +95,8 @@ jobs:
 
   build-android-apk:
     runs-on: ubuntu-latest
+    container:
+      image: reactnativecommunity/react-native-android:latest
     permissions:
       contents: read
     steps:
@@ -113,14 +115,6 @@ jobs:
           node-version: '25.6.1'
           cache: 'npm'
 
-      - name: Set up Android SDK
-        uses: android-actions/setup-android@v3
-
-      - name: Install Android SDK packages
-        run: |
-          yes | sdkmanager --licenses
-          sdkmanager "platform-tools" "platforms;android-35" "build-tools;35.0.0"
-
       - name: Install dependencies
         run: npm ci