Upgrade to JUnit 5.9.1.

Resolves #1262.

Author: gregturn

pom.xml

@@ -104,7 +104,7 @@
         <jaxen.version>1.1.4</jaxen.version>
         <jdom2.version>2.0.6</jdom2.version>
         <jetty.version>11.0.7</jetty.version>
-        <junit.version>5.7.0</junit.version>
+        <junit.version>5.9.1</junit.version>
         <log4j2.version>2.17.1</log4j2.version>
         <mail.version>1.4.7</mail.version>
         <mockito.version>4.0.0</mockito.version>