maven stable tries to create a tag

[tloubrieu-jpl]

Describe the bug The maven stable tries to create a tag, improperly.

• I don't think the roundup needs to create the tag since it is the creation of the tag which triggers the action.

To Reproduce

See a log of the action which does not work: https://github.com/NASA-PDS/pds-registry-app/runs/1490535993?check_suite_focus=true