Update generated code

[stripe-openapi]

Codegen for openapi v949.

Changelog

• Add support for new values billing_policy_remote_function_response_invalid, billing_policy_remote_function_timeout, billing_policy_remote_function_unexpected_status_code, and billing_policy_remote_function_unreachable on enum StripeError.code
• Change type of Billing.MeterEventAdjustment.cancel from BillingMeterResourceBillingMeterEventAdjustmentCancel to nullable(BillingMeterResourceBillingMeterEventAdjustmentCancel)
• Add support for amazon_pay on PaymentMethodConfiguration and PaymentMethod
• Add support for new value amazon_pay on enum PaymentMethod.type
• Add support for new values bh_vat, kz_bin, ng_tin, and om_vat on enum TaxId.type