2.5.2

Adds -s --skiptests flags in build and in publish.

I'm generally against skipping tests, but gomason's build/sign/publish features are quite useful in conjunction with dbt especially for 3rd party code that you use, but don't develop.

Hashicorp Vault is a good example. In a Mac environment with a VPN you need CGO, but homebrew no longer supports building vault with the --with-dynamic flag, and forcing everyone to roll their own is a pain.