Update maven deploy plugin.

Author: damienbr

pom.xml

@@ -83,7 +83,7 @@
 
         <!-- Maven Pluging Version -->
         <exec-maven-plugin.version>1.6.0</exec-maven-plugin.version>
-        <nexus-staging-maven-plugin.version>1.6.8</nexus-staging-maven-plugin.version>
+        <nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
         <maven-source-plugin.version>3.0.1</maven-source-plugin.version>
         <maven-javadoc-plugin.version>3.2.0</maven-javadoc-plugin.version>
         <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>