Git.io deprecation notice

Hello, I've found that some of your files in this repo is still using https://git.io/, and this service will be discontinued in the future. (ref: [Git.io deprecation](https://github.blog/changelog/2022-04-25-git-io-deprecation/))
Theses files are: src/plugin.ts

> This is an automated message from NPMMirror(https://github.com/npmmirror), a bot developed by Nova Kwok(https://github.com/n0vad3v).
    