Bump dom4j from 2.1.1 to 2.1.3 in /xml

Bumps [dom4j](https://github.com/dom4j/dom4j) from 2.1.1 to 2.1.3.
- [Release notes](https://github.com/dom4j/dom4j/releases)
- [Commits](https://github.com/dom4j/dom4j/compare/version-2.1.1...version-2.1.3)

---
updated-dependencies:
- dependency-name: org.dom4j:dom4j
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

xml/pom.xml

@@ -359,7 +359,7 @@
     </profiles>
 
     <properties>
-        <dom4j.version>2.1.1</dom4j.version>
+        <dom4j.version>2.1.3</dom4j.version>
         <jaxen.version>1.2.0</jaxen.version>
         <jdom2.version>2.0.6</jdom2.version>
         <joox.version>1.6.2</joox.version>