Satisfy Rubocop on new migrations

db/migrate/20250103043626_delete_checkout_zone_and_currency_preferences.rb

@@ -2,7 +2,7 @@
 
 class DeleteCheckoutZoneAndCurrencyPreferences < ActiveRecord::Migration[7.0]
   def up
-    execute <<~SQL
+    execute <<~SQL.squish
       DELETE FROM spree_preferences
       WHERE key IN (
         '/spree/app_configuration/checkout_zone',

db/migrate/20250113055412_customers_created_manually_remove_null.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CustomersCreatedManuallyRemoveNull < ActiveRecord::Migration[7.0]
   def change
     change_column_null :customers, :created_manually, true