QPIDJMS-618: drop back to junit 5.14.2 for JDK compatibility

Author: gemmellr

pom.xml

@@ -46,7 +46,7 @@
 
     <!-- Test Dependency Versions for this Project -->
     <netty-tcnative-version>2.0.74.Final</netty-tcnative-version>
-    <junit.jupiter.version>6.0.2</junit.jupiter.version>
+    <junit.jupiter.version>5.14.2</junit.jupiter.version>
     <mockito-version>5.21.0</mockito-version>
     <hamcrest-version>3.0</hamcrest-version>
     <hadoop-minikdc-version>3.4.2</hadoop-minikdc-version>