Update generated code for beta

[stripe-openapi]

Codegen for openapi v645.

Changelog

• Add support for AttachPaymentIntent method on resource Invoice
• Add support for RevolutPay on ConfirmationTokenPaymentMethodPreview
• Add support for new value revolut_pay on enum ConfirmationTokenPaymentMethodPreviewType
• Add support for Refunds on CreditNoteParams, CreditNotePreviewLinesParams, CreditNotePreviewParams, and CreditNote
• Add support for PostPaymentAmount and PrePaymentAmount on CreditNote
• Add support for new value invoice.payment.overpaid on enum EventType
• Add support for ScheduleDetails on InvoiceUpcomingLinesParams and InvoiceUpcomingParams
• Add support for AmountsDue on InvoiceParams and Invoice
• Add support for Payments on Invoice
• Add support for Created on IssuingPersonalizationDesign
• Add support for EndingBefore, Limit, and StartingAfter on TaxRegistrationListParams
• Change type of TaxRegistrationActiveFromParams and TaxRegistrationExpiresAtParams from longInteger to literal('now')
• Change type of TaxRegistrationActiveFromParams and TaxRegistrationExpiresAtParams from literal('now') to DateTime
• Change type of TaxRegistrationActiveFrom, TaxRegistrationCreated, TaxRegistrationExpiresAtParams, and TaxRegistrationExpiresAt from longInteger to DateTime