fix: Parse Server doesn't shutdown gracefully (#9634)

spec/EnableExpressErrorHandler.spec.js

@@ -3,11 +3,9 @@ const request = require('../lib/request');
 describe('Enable express error handler', () => {
   it('should call the default handler in case of error, like updating a non existing object', async done => {
     spyOn(console, 'error');
-    const parseServer = await reconfigureServer(
-      Object.assign({}, defaultConfiguration, {
-        enableExpressErrorHandler: true,
-      })
-    );
+    const parseServer = await reconfigureServer({
+      enableExpressErrorHandler: true,
+    });
     parseServer.app.use(function (err, req, res, next) {
       expect(err.message).toBe('Object not found.');
       next(err);