fix: config path without selenium (#4184)

Author: kobenguyent

lib/helper/WebDriver.js

@@ -497,8 +497,9 @@ class WebDriver extends Helper {
     if (config.host) {
       // webdriverio spec
       config.hostname = config.host;
-      config.path = '/wd/hub';
+      config.path = config.path ? config.path : '/wd/hub';
     }
+
     config.baseUrl = config.url || config.baseUrl;
     if (config.desiredCapabilities && Object.keys(config.desiredCapabilities).length) {
       config.capabilities = config.desiredCapabilities;