Update api version for examples

Author: kmozsi

examples/pom.xml

@@ -15,7 +15,7 @@
         <dependency>
             <groupId>com.convertapi.client</groupId>
             <artifactId>convertapi</artifactId>
-            <version>2.2</version>
+            <version>2.4</version>
         </dependency>
     </dependencies>