Restrict selenium-webdriver to <4.8.0

4.8.0 is incompatible with Node versions before 14.18, which we still support.

Author: sgravrock

package.json

@@ -40,7 +40,7 @@
     "ejs": "^3.1.6",
     "express": "^4.16.4",
     "glob": "^7.1.7",
-    "selenium-webdriver": "^4.1.0"
+    "selenium-webdriver": ">=4.1.0 <4.8.0"
   },
   "peerDependencies": {
     "jasmine-core": "^4.0.0"