add warning message that config.use_redirect_back_or_to_by_rails = tr…

…ue will become the default

lib/sorcery/controller.rb

@@ -100,7 +100,7 @@ def redirect_back_or_to(...)
         if Config.use_redirect_back_or_to_by_rails
           super
         else
-          warn('[WARNING] `redirect_back_or_to` overrides the method of the same name defined in Rails 7. If you want to avoid overriding, you can set `config.use_redirect_back_or_to_by_rails = true` and use `redirect_to_before_login_path`.')
+          warn('[WARNING] `redirect_back_or_to` overrides the method of the same name defined in Rails 7. If you want to avoid overriding, you can set `config.use_redirect_back_or_to_by_rails = true` and use `redirect_to_before_login_path`. In a future version, `config.use_redirect_back_or_to_by_rails = true` will become the default.')
           redirect_to_before_login_path(...)
         end
       end