Provide latest tag in Harbor stage

This template is ONLY used for reporting bugs. New feature request or pipeline enhancement issues should use the other template options for issue submission.

Current Behavior

The pipeline is not currently tagging the latest image as latest. The only images which are tagged latest come from old Jenkins pipeline runs.

Live Example

https://registry1.dsop.io/harbor/projects/3/repositories/redhat%2Fubi%2Fubi7

Expected Behavior

The latest image being pushed should contain the image tag and the latest tag. The former latest image should be untagged.

Possible Solution

Implement similar logic from the Jenkins latest tag functionality into our GitLab pipeline.