GP-6385: Setting failOnNoDiscoveredTests for Gradle tests

gradle/root/test.gradle

@@ -300,6 +300,10 @@ def initTestJVM(Task task, String rootDirName) {
 	// If false, testing will halt when an error is found.
 	task.ignoreFailures true
 	
+	// Whether or failure should occur if tests sources are present, but no tests are discovered
+	// during test execution. New for Gradle 9 (behavior is equivalent to false on Gradle 8).
+	task.failOnNoDiscoveredTests = false
+	
 	// If false, then tests are re-run every time, even if no code has changed.
 	task.outputs.upToDateWhen {false}