Minor fixes to release pipeline
Minor fixes to release pipeline

- With the change of the template the process needs to change
as well.
- `BUILD_URL` did not exist without using `env`

jcpowermac/jenkins-on-openshift,RHsyseng/jenkins-on-openshift,RHsyseng/jenkins-on-openshift,jcpowermac/jenkins-on-openshift,RHsyseng/jenkins-on-openshift,jcpowermac/jenkins-on-openshift