Update rubocop dependency

[dakotahp]

Bump the dependencies to stay up-to-date. Rubocop moves fast so we can minimize falling behind on rule name changes.

[dakotahp]

Will I have to test whether the rules are still valid (in terms of rubocop name changes) by trying it on orders? I don't know how to validate if the rules have the correct names within this repo.

[JustinAiken]

Will I have to test whether the rules are still valid (in terms of rubocop name changes) by trying it on orders?

Yep, open a branch that points the ut-rubocop-rails gem to git: "https://github.com/usertesting/ut_rubocop_rails", branch: "dp-bump-rubocop"

[dakotahp]

@JustinAiken I have a branch for illustration showing the orders gem updated to these updated versions and regenerated the todo file. No major issues. We'll have to add the new rails performance rules to the todo after these are merged and orders is updated.

https://github.com/usertesting/orders/compare/rubocop/update-gem?expand=1