Revert "Narrow our rule exception to no-extraneous-dependencies"

This reverts commit 474e3f94 from !160 (merged)

I had a brain lapse and forgot about the implications of adding dependencies to a published npm package versus a package.json for a root project which may delineate dependencies and devDependencies differently. 🤦🏻

/cc @ClemMakesApps @leipert