chore(clerk-js): Use /subscription_items endpoint to cancel subs (#6341)

Author: panteliselef

.changeset/spicy-shirts-kiss.md

@@ -0,0 +1,5 @@
+---
+'@clerk/clerk-js': patch
+---
+
+Replace the `/subscriptions` FAPI endpoint with `/subscription_items` for cancelling subscription items.

packages/clerk-js/src/core/resources/CommerceSubscription.ts

@@ -68,8 +68,8 @@ export class CommerceSubscription extends BaseResource implements CommerceSubscr
     const json = (
       await BaseResource._fetch({
         path: orgId
-          ? `/organizations/${orgId}/commerce/subscriptions/${this.id}`
-          : `/me/commerce/subscriptions/${this.id}`,
+          ? `/organizations/${orgId}/commerce/subscription_items/${this.id}`
+          : `/me/commerce/subscription_items/${this.id}`,
         method: 'DELETE',
       })
     )?.response as unknown as DeletedObjectJSON;