Update dependency webdriver-manager to v12.1.9

Author: renovate[bot]

package.json

@@ -17,7 +17,7 @@
     "selenium-webdriver": "4.0.0-beta.4",
     "ts-node": "10.1.0",
     "typescript": "4.3.5",
-    "webdriver-manager": "12.1.8"
+    "webdriver-manager": "12.1.9"
   },
   "description": "Selenium-WebDriver end-to-end test automation boilerplate. Using TypeScript, ts-node and AVA.",
   "devDependencies": {