tested

db/migrate/20231226094553_add_published_at_to_communication_website_page.rb

 class AddPublishedAtToCommunicationWebsitePage < ActiveRecord::Migration[7.1]
   def change
     add_column :communication_website_pages, :published_at, :datetime
-    Communication::Website::Page.where(published: true).update_all published_at: Time.now
+    Communication::Website::Page.where(published: true).update_all("published_at = updated_at")
   end
 end