Dat dns 4.1.2

[ryanramage]

I am trying to land this: https://github.com/datprotocol/dat-dns/pull/19 into dat cli.

Dat-dns has marched on to 4.1.2 so I am bringing that version into this project, with the goal of bumping up dat-link-resolve.

This merge request increment the dat-dns version. I also took on doing a

npm audit fix as there were security warnings to resolve as well.