Update dependency selenium-webdriver to v4.0.0-beta.4

Author: renovate-bot

package-lock.json

@@ -8,7 +8,7 @@
     "chromedriver": "90.0.1",
     "esm": "3.2.25",
     "mocha": "8.4.0",
-    "selenium-webdriver": "4.0.0-beta.3",
+    "selenium-webdriver": "4.0.0-beta.4",
     "webdriver-manager": "12.1.8"
   },
   "description": "Selenium-WebDriver end-to-end test automation boilerplate. Using ES Modules, esm, Mocha and Chai.",