[continuous delivery module] RFE - jenkins/maven builds should use local nexus repo

It doesn't appear that the pipeline builds are using the internal nexus repo:

```
Downloaded: https://maven.repository.redhat.com/ga/org/jboss/eap/wildfly-clustering-web-undertow/7.1.1.GA-redhat-2/wildfly-clustering-web-undertow-7.1.1.GA-redhat-2.jar (102 kB at 4.2 kB/s)
```