Upgrade mockito-core to 5.18.0, add support for JDK 17 and 21, drop Scala 2.11 and JDK 8#559

TimvdLippe merged 2 commits intomockito:release/2.xmockito/mockito-scala:release/2.xfrom

jozic:mockito-5.18-jdk-17-21jozic/mockito-scala:mockito-5.18-jdk-17-21Copy head branch name to clipboard