[rubocop] reported by reviewdog 🐶 Use `<<~SQL.squish` instead of `<<~SQL`. Raw Output: db/migrate/20250103043626_delete_checkout_zone_and_currency_preferences.rb:5:13: C: Rails/SquishedSQLHeredocs: Use `<<~SQL.squish` instead of `<<~SQL`.

[rubocop] reported by reviewdog 🐶 Missing frozen string literal comment. Raw Output: db/migrate/20250113055412_customers_created_manually_remove_null.rb:1:1: C: Style/FrozenStringLiteralComment: Missing frozen string literal comment.