chore(types,clerk-js): Make finalize from useCheckout awaitable (#6422)

Author: panteliselef

.changeset/fuzzy-views-pay.md

@@ -0,0 +1,6 @@
+---
+'@clerk/clerk-js': patch
+'@clerk/types': patch
+---
+
+Make `.finalize()` from useCheckout to return a Promise.

packages/clerk-js/src/core/modules/checkout/instance.ts

@@ -64,7 +64,7 @@ function createCheckoutInstance(
 
   const finalize = (params?: { redirectUrl: string }) => {
     const { redirectUrl } = params || {};
-    void clerk.setActive({ session: clerk.session?.id, redirectUrl });
+    return clerk.setActive({ session: clerk.session?.id, redirectUrl });
   };
 
   const clear = () => manager.clearCheckout();

packages/types/src/clerk.ts

@@ -91,7 +91,7 @@ export type __experimental_CheckoutInstance = {
   confirm: (params: ConfirmCheckoutParams) => Promise<CheckoutResult>;
   start: () => Promise<CheckoutResult>;
   clear: () => void;
-  finalize: (params?: { redirectUrl: string }) => void;
+  finalize: (params?: { redirectUrl: string }) => Promise<void>;
   subscribe: (listener: (state: __experimental_CheckoutCacheState) => void) => () => void;
   getState: () => __experimental_CheckoutCacheState;
 };