Update github labeler with `eslint-plugin-next` (#28751)
Update github labeler with `eslint-plugin-next` (#28751)

The `eslint-plugin-next` package should be considered a "core" package since it powers the `next lint` command

flybayer/next.js,azukaru/next.js,azukaru/next.js,zeit/next.js,flybayer/next.js,JeromeFitz/next.js,JeromeFitz/next.js,zeit/next.js,JeromeFitz/next.js,flybayer/next.js,azukaru/next.js,zeit/next.js,azukaru/next.js,JeromeFitz/next.js,flybayer/next.js