Update generated code (#1478)

* Update generated code for v1642

* Update generated code for v1642

---------

Co-authored-by: Stripe OpenAPI <105521251+stripe-openapi[bot]@users.noreply.github.com>
Co-authored-by: Ramya Rao <100975018+ramya-stripe@users.noreply.github.com>

Author: stripe-openapi[bot]

OPENAPI_VERSION

@@ -1 +1 @@
-v1640
+v1642

stripe/_invoice.py

@@ -4297,7 +4297,6 @@ class VoidInvoiceParams(RequestOptions):
     The status of the invoice, one of `draft`, `open`, `paid`, `uncollectible`, or `void`. [Learn more](https://stripe.com/docs/billing/invoices/workflow#workflow-overview)
     """
     status_transitions: StatusTransitions
-    subscription: Optional[ExpandableField["Subscription"]]
     subtotal: int
     """
     Total of all subscriptions, invoice items, and prorations on the invoice before any invoice level discount or exclusive tax is applied. Item discounts are already incorporated

stripe/_subscription.py

@@ -2014,7 +2014,7 @@ class SearchParams(RequestOptions):
     """
     A date in the future at which the subscription will automatically get canceled
     """
-    cancel_at_period_end: Optional[bool]
+    cancel_at_period_end: bool
     """
     Whether this subscription will (if `status=active`) or did (if `status=canceled`) cancel at the end of the current billing period.
     """