Fix Stripe integration webhook validation (#836)

The SubtleCryptoProvider cannot be used in a synchronous context. This
is a problem for non-node environments where the Stripe client falls
back to SubtleCryptoProvider.

Co-authored-by: Matt Aitken <matt@mattaitken.com>

.changeset/shy-needles-push.md

@@ -0,0 +1,5 @@
+---
+"@trigger.dev/stripe": patch
+---
+
+Fix SubtleCryptoProvider webhook validation

integrations/stripe/src/index.ts

@@ -1151,7 +1151,7 @@ async function webhookHandler(event: HandlerEvent<"HTTP">, logger: Logger) {
     const stripeClient = new StripeClient("", { apiVersion: "2022-11-15" });
 
     try {
-      const event = stripeClient.webhooks.constructEvent(rawBody, signature, source.secret);
+      const event = await stripeClient.webhooks.constructEventAsync(rawBody, signature, source.secret);
 
       return {
         events: [