Downgrade junit jupiter to use Java 16 only!

Author: kohlerpop1

pom.xml

@@ -109,7 +109,7 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter</artifactId>
-            <version>RELEASE</version>
+            <version>5.9.3</version>
             <scope>test</scope>
         </dependency>
         <dependency>