Fix keyword arguments warnings on `try`

https://buildkite.com/rails/rails/builds/66168#b348f446-0406-425e-ba53-c5d15034cf98/1002-1070

activesupport/lib/active_support/core_ext/object/try.rb

@@ -15,6 +15,7 @@ def try(method_name = nil, *args, &b)
         public_send(method_name, *args, &b)
       end
     end
+    ruby2_keywords(:try) if respond_to?(:ruby2_keywords, true)
 
     def try!(method_name = nil, *args, &b)
       if method_name.nil? && block_given?
@@ -27,6 +28,7 @@ def try!(method_name = nil, *args, &b)
         public_send(method_name, *args, &b)
       end
     end
+    ruby2_keywords(:try!) if respond_to?(:ruby2_keywords, true)
   end
 end