Update to latest Groovy

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1679176 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 31b47e4..01e8232 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,7 +61,7 @@
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-all</artifactId>
-            <version>1.8.0</version>
+            <version>2.4.3</version>
             <scope>provided</scope>
         </dependency>
         <dependency>