Log Message:
finance/ruby-braintree: update to 4.18.0

4.17.0 (2023-12-19)

* Add PickupInStore to ShippingMethod enum
* Add external_vault and risk_data to CreditCardVerification create request

4.18.0 (2024-01-09)

* Add process_debit_as_credit to credit_card field in options field during
  Transaction create
* Add package_tracking method to transaction_gateway to make request to add
  tracking information to transactions
* Add packages to Transaction object
* Add image_url,upc_code, and upc_type to LineItems in transaction_gateway