pom update for sonar hibernate failures

currently jacoco (test coverage tool), includes every java class to its synthetic fields. so somehow our hibernate tests fail almost every sonar build.
i tried to exclude test classes from jacoco. (tests will run, only jacoco doesn't add its synthetic fields to some test classes. also it is meaningless for test classes.)

as a result;
in my local jenkins hibernate tests pass with not excluding test classes. (60.7 %) [hibernate-module]
in hazelcast jenkins hibernate tests will pass with exluding test classes. (60.6 %) [hibernate-module]