Merge pull request #38053 from Shopify/actionmailer-6-0-stable-ruby-2.7-warnings

Fix Ruby 2.7 warnings in Action Mailer 6.0

activejob/lib/active_job/execution.rb

@@ -38,7 +38,13 @@ def perform_now
       successfully_performed = false
 
       run_callbacks :perform do
-        perform(*arguments)
+        args = arguments
+        options = args.extract_options!
+        if options.empty?
+          perform(*args)
+        else
+          perform(*args, **options)
+        end
         successfully_performed = true
       end