Fail randomized testing tasks if no tests ran (#37764)

Reverts #36259 in part to make randomized test fail if no tests are ran.
This is useful when filtering tests as it's easy to make a typo and
think the test ran trough successfully.

buildSrc/src/main/groovy/org/elasticsearch/gradle/BuildPlugin.groovy

@@ -904,6 +904,7 @@ class BuildPlugin implements Plugin<Project> {
         project.tasks.withType(RandomizedTestingTask) {task ->
             jvm "${project.runtimeJavaHome}/bin/java"
             parallelism System.getProperty('tests.jvms', project.rootProject.ext.defaultParallel)
+            ifNoTests 'fail'
             onNonEmptyWorkDirectory 'wipe'
             leaveTemporary true
             project.sourceSets.matching { it.name == "test" }.all { test ->