update plugin version

Author: vedharish

pom.xml

@@ -85,7 +85,7 @@
                     <plugin>
                         <groupId>org.sonatype.plugins</groupId>
                         <artifactId>nexus-staging-maven-plugin</artifactId>
-                        <version>1.6.3</version>
+                        <version>1.6.7</version>
                         <extensions>true</extensions>
                         <configuration>
                             <serverId>ossrh</serverId>
@@ -130,7 +130,7 @@
             <plugin>
                 <groupId>org.sonatype.plugins</groupId>
                 <artifactId>nexus-staging-maven-plugin</artifactId>
-                <version>1.6.3</version>
+                <version>1.6.7</version>
                 <extensions>true</extensions>
                 <configuration>
                     <serverId>ossrh</serverId>