Update dependency selenium-webdriver to v4.38.0

Author: renovate[bot]

package.json

@@ -41,6 +41,6 @@
     "chromedriver": "84.0.1",
     "mocha": "10.0.0",
     "request": "2.88.2",
-    "selenium-webdriver": "4.0.0-beta.3"
+    "selenium-webdriver": "4.38.0"
   }
 }