WFLY-13853 Upgrade download-maven-plugin post 1.6.7 - to version managed by jboss-parent

Signed-off-by: Radoslav Husar <radosoft@gmail.com>

Author: rhusar

testsuite/integration/clustering/pom.xml

@@ -835,7 +835,6 @@
                     <plugin>
                         <groupId>com.googlecode.maven-download-plugin</groupId>
                         <artifactId>download-maven-plugin</artifactId>
-                        <version>1.3.0</version>
                         <executions>
                             <execution>
                                 <id>ts.config-as.configure-infinispan-server</id>