Update pom.xml

jodconverter-web/pom.xml

@@ -150,7 +150,7 @@
         <dependency>
             <groupId>com.thoughtworks.xstream</groupId>
             <artifactId>xstream</artifactId>
-            <version>1.3.1</version>
+            <version>1.4.6</version>
         </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>