Update dependency org.codehaus.plexus:plexus-classworlds to v2.9.0

Author: renovate[bot]

artemis-java-template/pom.xml

@@ -206,7 +206,7 @@
         <dependency>
             <groupId>org.codehaus.plexus</groupId>
             <artifactId>plexus-classworlds</artifactId>
-            <version>2.8.0</version>
+            <version>2.9.0</version>
         </dependency>
         <dependency>
             <groupId>org.apache.maven.plugins</groupId>