Downgrade JUnit Jupiter version to 5.9.3

Author: harshithasudhakar

pom.xml

@@ -10,7 +10,7 @@
     <properties>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        <junit.jupiter.version>6.0.0</junit.jupiter.version>
+        <junit.jupiter.version>5.9.3</junit.jupiter.version>
         <jacoco.version>0.8.7</jacoco.version>
     </properties>