[Module] Add GitHub Actions

[harlan-zw]

Adding this as more of a discussion issue.

It would be great to see some sort of GitHub action template for testing on main push / PRs.

This could use ni (or UnJS equivalent) to continue allowing users to user whatever package manager they want.

Personally, I'd also like a release script but this is a bit more complicated due to having to manage NPM tokens.

[atinux]

I completely agree with you @harlan-zw

We should have a GitHub action to run lint + test by default, +1 for using ni as well