update maven-plugin-plugin to 3.2

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1408564 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index f23eea2..0d2f744 100644
--- a/pom.xml
+++ b/pom.xml
@@ -55,7 +55,7 @@
 
   <properties>
     <mavenVersion>2.0.6</mavenVersion>
-    <mavenPluginPluginVersion>3.1</mavenPluginPluginVersion>
+    <mavenPluginPluginVersion>3.2</mavenPluginPluginVersion>
   </properties>
 
   <dependencies>