Replace `eslint-plugin-node` with `eslint-plugin-n`

[alecmev]

It's unmaintained: xojs/xo#660

[davidjbradshaw]

That looks like a reasonable change. Would you like to make a PR.

I guess this bumps the project to V1.0.0 as it’s going to be a breaking change.

[alecmev]

Sure! I think 0.8 is okay, it counts as a major bump per SemVer.