increase test waiting time

Author: rashtao

test-non-functional/src/test/java/concurrency/ConnectionLoadBalanceTest.java

@@ -86,7 +86,7 @@ void doTestLoadBalance(Config cfg, int sleepCycles) throws InterruptedException
         shortRunningTasks.join();
 
         await()
-                .timeout(Duration.ofSeconds(sleepDuration * sleepCycles + 1L))
+                .timeout(Duration.ofSeconds(sleepDuration * sleepCycles + 2L))
                 .until(longRunningTasks::isDone);
 
         LOGGER.debug("completed longRunningTasks");