ARTEMIS-4020 Fixing Semaphore on soak-tests/OWLeakTest

I did not intend to have this difference in the semaphore.

The idea is that we never keep messages pending on this case, otherwise such a huge message would use too much memory.

tests/soak-tests/src/test/java/org/apache/activemq/artemis/tests/soak/owleak/OWLeakTest.java

@@ -122,7 +122,7 @@ public class OWLeakTest extends SoakTestBase {
 
       String QUEUE_NAME = "some_queue";
 
-      Semaphore semaphore = new Semaphore(PRODUCERS + 1);
+      Semaphore semaphore = new Semaphore(PRODUCERS);
 
       CountDownLatch latch = new CountDownLatch(PRODUCERS + 1 + 1);