Updated JUnit to v5.7.0

Closes gh-179

pom.xml

@@ -134,7 +134,7 @@
 		<hazelcast.version>4.0.2</hazelcast.version>
 
 		<!-- Testing -->
-		<junit.jupiter.version>5.6.2</junit.jupiter.version>
+		<junit.jupiter.version>5.7.0</junit.jupiter.version>
 
 		<!-- Application servers -->
 		<tomcat.version>9.0.37</tomcat.version>