[stripe] Add missing billing_reason option (#34251)
[stripe] Add missing billing_reason option (#34251)

* types(stripe): add missing billing_reason option

# add subscription_create to the billing_reason
# https://stripe.com/docs/api/invoices/object#invoice_object-billing_reason

* stripe: add missing subscription_threshold option

dsebastien/DefinitelyTyped,georgemarshall/DefinitelyTyped,borisyankov/DefinitelyTyped,borisyankov/DefinitelyTyped,georgemarshall/DefinitelyTyped,markogresak/DefinitelyTyped,georgemarshall/DefinitelyTyped,mcliment/DefinitelyTyped,georgemarshall/DefinitelyTyped,dsebastien/DefinitelyTyped