Update Junit version to address CVE-2020-15250 (#163)

pom.xml

@@ -51,7 +51,7 @@
     <jar.dependencies.skip>true</jar.dependencies.skip>
 
     <!-- dependency versions a-z -->
-    <dependency.junit.version>4.12</dependency.junit.version>
+    <dependency.junit.version>4.13.2</dependency.junit.version>
     <dependency.log4j.version>2.22.0</dependency.log4j.version>
     <dependency.logback.version>1.2.3</dependency.logback.version>
     <dependency.nativelibloader.version>2.5.0</dependency.nativelibloader.version>