Use Hamcrest assertions instead of JUnit in messaging/messaging (helidon-io#1749) (helidon-io#5008)

Author: Captain1653

messaging/messaging/src/test/java/io/helidon/messaging/MessagingTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, 2021 Oracle and/or its affiliates.
+ * Copyright (c) 2020, 2022 Oracle and/or its affiliates.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -40,7 +40,6 @@
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.is;
 import static org.junit.jupiter.api.Assertions.assertThrows;
-import static org.junit.jupiter.api.Assertions.assertTrue;
 
 public class MessagingTest {
 
@@ -488,6 +487,6 @@ void connectorsTypeTest() throws InterruptedException {
                 .start();
 
         testData.assertEquals();
-        assertTrue(TestConnector.latch.await(500, TimeUnit.MILLISECONDS));
+        assertThat(TestConnector.latch.await(500, TimeUnit.MILLISECONDS), is(true));
     }
 }