Maintenance: Bump selenium-webdriver from 4.2.0 to 4.2.1

Bumps [selenium-webdriver](https://github.com/SeleniumHQ/selenium) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/SeleniumHQ/selenium/releases)
- [Changelog](https://github.com/SeleniumHQ/selenium/blob/trunk/rb/CHANGES)
- [Commits](https://github.com/SeleniumHQ/selenium/commits)

Gemfile.lock

@@ -499,7 +499,7 @@ GEM
       sprockets (> 3.0)
       sprockets-rails
       tilt
-    selenium-webdriver (4.2.0)
+    selenium-webdriver (4.2.1)
       childprocess (>= 0.5, < 5.0)
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)