use the @cloudron/superagent module

src/routes/test/directoryserver-test.js

@@ -7,7 +7,7 @@
 
 const common = require('./common.js'),
     expect = require('expect.js'),
-    superagent = require('../../superagent.js');
+    superagent = require('@cloudron/superagent');
 
 describe('Directory Server API', function () {
     const { setup, cleanup, serverUrl, owner } = common;