Fix Rails/BulkChangeTable cop (#26890)

db/migrate/20220202200743_add_trendable_to_accounts.rb

@@ -2,8 +2,12 @@
 
 class AddTrendableToAccounts < ActiveRecord::Migration[6.1]
   def change
-    add_column :accounts, :trendable, :boolean
-    add_column :accounts, :reviewed_at, :datetime
-    add_column :accounts, :requested_review_at, :datetime
+    safety_assured do
+      change_table(:accounts, bulk: true) do |t|
+        t.column :trendable, :boolean
+        t.column :reviewed_at, :datetime
+        t.column :requested_review_at, :datetime
+      end
+    end
   end
 end