feat(benchmark): Add benchmark scenario for binary files (#10648)

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

@@ -0,0 +1,22 @@
+import http from 'k6/http';
+import { check } from 'k6';
+
+const apiBaseUrl = __ENV.API_BASE_URL;
+
+const file = open(__ENV.SCRIPT_FILE_PATH, 'b');
+const filename = String(__ENV.SCRIPT_FILE_PATH).split('/').pop();
+
+export default function () {
+	const data = {
+		filename,
+		file: http.file(file, filename, 'application/javascript'),
+	};
+
+	const res = http.post(`${apiBaseUrl}/webhook/binary-files-benchmark`, data);
+
+	check(res, {
+		'is status 200': (r) => r.status === 200,
+		'has correct content type': (r) =>
+			r.headers['Content-Type'] === 'application/javascript; charset=utf-8',
+	});
+}