Bump org.seleniumhq.selenium:selenium-java from 4.20.0 to 4.21.0

Bumps [org.seleniumhq.selenium:selenium-java](https://github.com/SeleniumHQ/selenium) from 4.20.0 to 4.21.0.
- [Release notes](https://github.com/SeleniumHQ/selenium/releases)
- [Commits](SeleniumHQ/selenium@selenium-4.20.0...selenium-4.21.0)

---
updated-dependencies:
- dependency-name: org.seleniumhq.selenium:selenium-java
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

build.gradle

@@ -68,7 +68,7 @@ dependencies {
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testImplementation 'org.springframework.security:spring-security-test'
     testImplementation 'org.apache.httpcomponents.client5:httpclient5:5.3.1'
-    testImplementation 'org.seleniumhq.selenium:selenium-java:4.20.0'
+    testImplementation 'org.seleniumhq.selenium:selenium-java:4.21.0'
     testImplementation 'io.percy:percy-java-selenium:2.0.5'
     testImplementation 'org.awaitility:awaitility'
     testImplementation 'io.github.bonigarcia:webdrivermanager:5.8.0'