[DOC][EAP 7.3] Need to update spring version integrated with RESTEasy

In our documentation is describing RESTEasy integrates with Spring 4.2.
However, our EAP 7.3 quick-start(spring-resteasy) is using a version of 4.3, and our configuration page listed 5.2 as Tested Frameworks. Need to update RESTEasy integrated spring version.