- 支持自定义归档下载线程数
- 修复归档多线程下载时部分情况下文件操作失败的bug
- 修复归档多线程下载时部分情况下无法删除本地已下载文件的bug

------------------------------------------------------------------------------------------

- Support customize archive download thread count
- Fix the bug that file operation fails in some cases when downloading archive
- Fix the bug that file deletion fails in some cases when downloading archive