SLING-5685 Upgrade Commons IO to 2.5

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1742107 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 80ff9a7..9a66f0c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -117,7 +117,7 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>1.4</version>
+            <version>2.5</version>
             <scope>provided</scope>
         </dependency>
 		<dependency>