Update code style to address future rubocop failures

What does this MR do and why?

Part of Bump gitlab-styles to v13 (#733)

The latest version of gitlab-style includes a number of rubocops that will causes a over 400 failures within gitlab-qa which will be a painfully large change to review so lets break this down into a a number of more manageable MRs to review prior to bumping the gem in question.

How to set up and validate locally

bundle exec rubocop 

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• Commits include Changelog: trailer
• I have evaluated the MR acceptance checklist for this MR.