Use ActiveModel::Attributes in admin/status_batch_action (#35255)

app/models/admin/status_batch_action.rb

@@ -2,6 +2,7 @@
 
 class Admin::StatusBatchAction
   include ActiveModel::Model
+  include ActiveModel::Attributes
   include AccountableConcern
   include Authorization
 
@@ -9,11 +10,7 @@ class Admin::StatusBatchAction
                 :status_ids, :report_id,
                 :text
 
-  attr_reader :send_email_notification
-
-  def send_email_notification=(value)
-    @send_email_notification = ActiveModel::Type::Boolean.new.cast(value)
-  end
+  attribute :send_email_notification, :boolean
 
   def save!
     process_action!