Update selenium-java to 4.21.0 (#206)

Co-authored-by: ptrdom-scala-steward[bot] <157643620+ptrdom-scala-steward[bot]@users.noreply.github.com>

build.sbt

@@ -117,7 +117,7 @@ lazy val `scala-steward-hooks` = project
       "org.scalatest" %% "scalatest" % "3.2.18" % "test",
       "org.scalatest" %% "scalatest-shouldmatchers" % "3.2.18",
       "org.scalatestplus" %% "selenium-4-9" % "3.2.16.0",
-      "org.seleniumhq.selenium" % "selenium-java" % "4.20.0",
+      "org.seleniumhq.selenium" % "selenium-java" % "4.21.0",
       "org.apache.pekko" %% "pekko-actor-typed" % "1.0.2",
       "org.apache.pekko" %% "pekko-stream" % "1.0.2",
       "org.apache.pekko" %% "pekko-http" % "1.0.1"

sbt-scalajs-esbuild-electron/examples/e2e-test-selenium-jvm/build.sbt

@@ -52,6 +52,6 @@ lazy val `e2e-test` =
       libraryDependencies += "org.scalatest" %%% "scalatest" % "3.2.18" % "test",
       libraryDependencies ++= Seq(
         "org.scalatestplus" %% "selenium-4-9" % "3.2.16.0" % "test",
-        "org.seleniumhq.selenium" % "selenium-java" % "4.20.0" % "test"
+        "org.seleniumhq.selenium" % "selenium-java" % "4.21.0" % "test"
       ) // should be upgraded when Electron upgrades its chromium version
     )

sbt-scalajs-esbuild-web/src/sbt-test-utilities/project/html.sbt

@@ -1,3 +1,3 @@
 libraryDependencies += "org.scalatestplus" %% "selenium-4-9" % "3.2.16.0"
-libraryDependencies += "org.seleniumhq.selenium" % "selenium-java" % "4.20.0"
+libraryDependencies += "org.seleniumhq.selenium" % "selenium-java" % "4.21.0"
 libraryDependencies += "org.scalatest" %% "scalatest-shouldmatchers" % "3.2.18"

sbt-web-scalajs-esbuild/src/sbt-test/sbt-web-scalajs-esbuild/basic-project/project/html.sbt

@@ -1,3 +1,3 @@
 libraryDependencies += "org.scalatestplus" %% "selenium-4-9" % "3.2.16.0"
-libraryDependencies += "org.seleniumhq.selenium" % "selenium-java" % "4.20.0"
+libraryDependencies += "org.seleniumhq.selenium" % "selenium-java" % "4.21.0"
 libraryDependencies += "org.scalatest" %% "scalatest-shouldmatchers" % "3.2.18"