Update Globalize monkey-patch to forward kw args

This method changed in Globalize version 6.0.1 [1], which we're using since
commit 6072372c9d.

We were getting a deprecation warning in Ruby 2.7:

```
config/initializers/globalize.rb:8: warning: Using the last argument as
keyword parameters is deprecated; maybe ** should be added to the call
```

So we're using the `(...)` arguments syntax to make it compatible with
Ruby 3.0, just like Globalize does when using Ruby 2.7.

[1] See pull request 778 in the globalize/globalize GitHub repo.

config/initializers/globalize.rb

@@ -1,7 +1,7 @@
 module Globalize
   module ActiveRecord
     module InstanceMethods
-      def save(*)
+      def save(...)
         # Credit for this code belongs to Jack Tomaszewski:
         # https://github.com/globalize/globalize/pull/578
         Globalize.with_locale(Globalize.locale || I18n.default_locale) do