Downgrade to Plexus XML 3.0.0

Author: michael-o

pom.xml

@@ -263,6 +263,7 @@ under the License.
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-xml</artifactId>
+      <version>3.0.0</version>
     </dependency>
     <dependency>
       <groupId>org.codehaus.plexus</groupId>