upgrade maven plugins

Author: itsankit-google

pom.xml

@@ -383,7 +383,7 @@
           <plugin>
             <groupId>org.sonatype.plugins</groupId>
             <artifactId>nexus-staging-maven-plugin</artifactId>
-            <version>1.6.2</version>
+            <version>1.6.14</version>
             <extensions>true</extensions>
             <configuration>
               <nexusUrl>https://oss.sonatype.org</nexusUrl>