Update rubocop requirement from ~> 1.16.0 to ~> 1.54.2#1904

dependabot[bot] wants to merge 1 commit intomainNexmo/station:mainfrom

dependabot/bundler/rubocop-tw-1.54.2Nexmo/station:dependabot/bundler/rubocop-tw-1.54.2Copy head branch name to clipboard