Changing onos maven-plugin version to 1.3 in root pom.xml

Change-Id: I962518d8fb017f587e3b48cf016ef53afb35d01c

@@ -578,7 +578,7 @@
                 <plugin>
                 <plugin>
                     <groupId>org.onosproject</groupId>
                     <groupId>org.onosproject</groupId>
                     <artifactId>onos-maven-plugin</artifactId>
                     <artifactId>onos-maven-plugin</artifactId>
-                    <version>1.2</version>
+                    <version>1.3</version>
                     <executions>
                     <executions>
                         <execution>
                         <execution>
                             <id>cfg</id>
                             <id>cfg</id>