v1.6.3

I Oops'd the 1.6.2 release and package-lock.json got stuck at 1.7.0. 😞

This fixes that and bumps to 1.6.3 for both package.json and package-lock.json

I've updated the release process docs to include tips for how to not do that again.

Fixes

• (fix): sets package.json and package-lock.json to 1.6.3