Bump selenium-webdriver from 4.19.0 to 4.21.1

Bumps [selenium-webdriver](https://github.com/SeleniumHQ/selenium) from 4.19.0 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] <[email protected]>

Gemfile.lock

@@ -268,7 +268,8 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.6)
+    rexml (3.2.8)
+      strscan (>= 3.0.9)
     rubocop (1.63.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
@@ -286,7 +287,7 @@ GEM
     ruby-vips (2.2.1)
       ffi (~> 1.12)
     rubyzip (2.3.2)
-    selenium-webdriver (4.19.0)
+    selenium-webdriver (4.21.1)
       base64 (~> 0.2)
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
@@ -304,6 +305,7 @@ GEM
     stimulus-rails (1.3.3)
       railties (>= 6.0.0)
     stringio (3.1.0)
+    strscan (3.1.0)
     tailwindcss-rails (2.4.0-aarch64-linux)
       railties (>= 6.0.0)
     tailwindcss-rails (2.4.0-arm64-darwin)