Update rails requirement from ~> 3.0.0 to ~> 6.0.2#6

dependabot-preview[bot] wants to merge 1 commit intomasterCoffa/client_variable:masterfrom

dependabot/bundler/rails-tw-6.0.2Coffa/client_variable:dependabot/bundler/rails-tw-6.0.2Copy head branch name to clipboard