Upgrade hexo-util

[seekstar]

This PR fixes https://github.com/kchen0x/hexo-reference/issues/15

This fix seems to work fine on my blog: https://seekstar.github.io/2023/03/27/使用netns绕过wireguard/

source code of this post: https://gitee.com/searchstar/blog/raw/master/source/_posts/Linux/Network/使用netns绕过wireguard.md