Update to latest commons parent pom

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/dbutils/trunk@1750156 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 9600b5d..7d6e990 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.commons</groupId>
     <artifactId>commons-parent</artifactId>
-    <version>34</version>
+    <version>40</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
   <groupId>commons-dbutils</groupId>