style(rubocop): fix all safe auto correctable offenses

script/make_user.rb

@@ -1,8 +1,11 @@
 #!/usr/bin/env ruby
-trap("INT") { puts ; exit }
+trap("INT") do
+  puts
+  exit
+end
 
-require_relative '../config/environment'
-require 'postal/user_creator'
+require_relative "../config/environment"
+require "postal/user_creator"
 
 Postal::UserCreator.start do |u|
   u.admin = true