Merge pull request rails#47504 from yahonda/another_47478

Address `Passing the coder as positional argument` deprecation warning

Author: yahonda

activerecord/test/cases/serialized_attribute_test.rb

@@ -377,7 +377,7 @@ def dump(obj)
           super&.freeze
         end
       end
-      serialize :normal_blob, FrozenCoder.new(:normal_blob, Array)
+      serialize(:normal_blob, coder: FrozenCoder.new(:normal_blob, Array))
     end
 
     def test_is_not_changed_when_stored_in_mysql_blob_frozen_payload