fix: Drone 打包步骤去掉 privileged，避免未 trusted 仓库被拒绝

Co-authored-by: Cursor <cursoragent@cursor.com>

.drone.yml

@@ -28,7 +28,7 @@ volumes:
 steps:
   - name: package-docker
     image: docker:27-cli
-    privileged: true
+    # 通过挂载宿主机 docker.sock 构建，无需 privileged（未 trusted 时 privileged 会被拒绝）
     volumes:
       - name: dockersock
         path: /var/run/docker.sock