8342044: Increase timeout of gc/shenandoah/oom/TestClassLoaderLeak.java

Reviewed-by: shade

Author: MBaesken

test/hotspot/jtreg/gc/shenandoah/oom/TestClassLoaderLeak.java

@@ -27,7 +27,7 @@
  * @summary Test OOME in due to classloader leak
  * @requires vm.gc.Shenandoah
  * @library /test/lib
- * @run driver TestClassLoaderLeak
+ * @run driver/timeout=600 TestClassLoaderLeak
  */
 
 import java.util.*;