v15.4.0-beta.1

• #2065 Update generated code for beta
  • Add support for capital_overview, tax_registrations, and tax_settings on AccountSessionCreateParams.components
  • Add support for external_account_collection on AccountSessionCreateParams.components.financial_account.features
  • Add support for subscription_trial_from_plan on InvoiceUpcomingLinesParams and InvoiceUpcomingParams

See the changelog for more details.