Bump org.apache.activemq:artemis-server from 2.29.0 to 2.40.0 in /jet/jms (#717)

Author: dependabot[bot]

jet/jms/pom.xml

@@ -49,6 +49,6 @@
     <properties>
         <!-- needed for checkstyle/findbugs -->
         <main.basedir>${project.parent.parent.basedir}</main.basedir>
-        <artemis.version>2.29.0</artemis.version>
+        <artemis.version>2.40.0</artemis.version>
     </properties>
 </project>