fix(tests,webhooks): fix test assertions and webhook API structure

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@apiclient.xyz/bunq",
-  "version": "3.0.1",
+  "version": "3.0.2",
   "private": false,
   "description": "A full-featured TypeScript/JavaScript client for the bunq API",
   "type": "module",
@@ -10,7 +10,7 @@
   "author": "Lossless GmbH",
   "license": "MIT",
   "scripts": {
-    "test": "(tstest test/ --verbose)",
+    "test": "(tstest test/ --verbose --logfile)",
     "test:basic": "(tstest test/test.ts --verbose)",
     "test:payments": "(tstest test/test.payments.simple.ts --verbose)",
     "test:webhooks": "(tstest test/test.webhooks.ts --verbose)",