[pom] Add java.test setting for java 16+ usage

set in parent now to 11, need to force in line with 16 here.

Author: hazendaz

pom.xml

@@ -448,6 +448,8 @@
       <properties>
         <java.version>16</java.version>
         <java.release.version>16</java.release.version>
+        <java.test.version>16</java.test.version>
+        <java.test.release.version>16</java.test.release.version>
         <excludedGroups>TestcontainersTests,RequireIllegalAccess</excludedGroups>
       </properties>
     </profile>