Fix CreateWebhookRequest: optional token (#104)

Fix the typings of `CreateWebhookRequest` - the `token` is optional in the API.

Co-authored-by: Ilya Merman <[email protected]>

Author: KATT

types/webhooks.ts

@@ -63,7 +63,7 @@ export interface CreateWebhookRequest {
         /**
          * The secret token(see Securing your webhooks).
          */
-        token: string
+        token?: string
 
         /**
          * The type of content you wish to receive. Always JsonAPI.
@@ -95,4 +95,4 @@ export interface PatchWebhookRequest {
          */
         token?: string
     }
-}
+}