Version bump

Author: phax

pom.xml

@@ -98,7 +98,7 @@
       <dependency>
         <groupId>at.austriapro</groupId>
         <artifactId>ebinterface-ubl-mapping</artifactId>
-        <version>5.3.2</version>
+        <version>5.3.4</version>
       </dependency>
       <dependency>
         <groupId>com.helger.phive</groupId>