feat(benchmark): Add benchmark scenario for the httprequest node (#10672)

packages/@n8n/benchmark/scenarios/httpNode/httpNode.script.js

@@ -0,0 +1,15 @@
+import http from 'k6/http';
+import { check } from 'k6';
+
+const apiBaseUrl = __ENV.API_BASE_URL;
+
+export default function () {
+	const res = http.post(`${apiBaseUrl}/webhook/benchmark-http-node`);
+
+	check(res, {
+		'is status 200': (r) => r.status === 200,
+		'http requests were OK': (r) =>
+			// Response body is an array of the request status codes made with HttpNodes
+			JSON.parse(r.body).every((request) => request.statusCode === 200),
+	});
+}