v2.2.0

新增：

1. props: backUpload：是否启用后台上传，启用后将跳过默认的文件上传操作 @changhuali
2. APIcacheDirStat&clearCache用于感知文件上传缓存状态和清除文件上传缓存，你也可以通过UPLOAD_CACHE_DIR获取文件上传缓存目录 @Limoer96

What's Changed

• feat: 支持后台上传配置 by @changhuali in #6

New Contributors

• @changhuali made their first contribution in #6

Full Changelog: v2.1.1...v2.2.0