Bump org.seleniumhq.selenium:selenium-java from 4.12.1 to 4.15.0

Bumps [org.seleniumhq.selenium:selenium-java](https://github.com/SeleniumHQ/selenium) from 4.12.1 to 4.15.0.
- [Release notes](https://github.com/SeleniumHQ/selenium/releases)
- [Commits](https://github.com/SeleniumHQ/selenium/commits/selenium-4.15.0)

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

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

Author: dependabot[bot]

testing/build.gradle.kts

@@ -22,7 +22,7 @@ application {
 dependencies {
     testImplementation(kotlin("test"))
     testImplementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.7.3")
-    testImplementation("org.seleniumhq.selenium:selenium-java:4.12.1")
+    testImplementation("org.seleniumhq.selenium:selenium-java:4.15.0")
     testImplementation("com.microsoft.playwright:playwright:1.38.0")
 }