Bump selenium-webdriver from 4.20.1 to 4.21.1

Bumps [selenium-webdriver](https://github.com/SeleniumHQ/selenium) from 4.20.1 to 4.21.1.
- [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)

---
updated-dependencies:
- dependency-name: selenium-webdriver
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -221,7 +221,8 @@ GEM
     regexp_parser (2.9.0)
     reline (0.5.7)
       io-console (~> 0.5)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rspec-core (3.13.0)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.0)
@@ -283,7 +284,7 @@ GEM
     ruby-vips (2.2.1)
       ffi (~> 1.12)
     rubyzip (2.3.2)
-    selenium-webdriver (4.20.1)
+    selenium-webdriver (4.21.1)
       base64 (~> 0.2)
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
@@ -298,6 +299,7 @@ GEM
     stimulus-rails (1.3.3)
       railties (>= 6.0.0)
     stringio (3.1.0)
+    strscan (3.1.0)
     thor (1.3.1)
     timeout (0.4.1)
     turbo-rails (2.0.5)