[BUG] undefined tag is present on Dockerhub

[davidzwa]

Describe the bug
Somehow the tag undefined is pushed with the same layers as bleeding is tagged with. Maybe a workflow bug causes this label to be tagged

To Reproduce
Steps to reproduce the behavior:

1. Visit dockerhub: https://hub.docker.com/layers/octoprint/octoprint/undefined/images/sha256-cd7fede720a0fdf91989939a38c2e604c991eaa81da6353c8367a168489b48ce?context=explore
2. Find the undefined tag being present

Expected behavior
Would not expect this tag

[davidzwa]

I believe not adding a tag_name to the tagging strategy causes this:
https://github.com/HackerHappyHour/tagging-strategy#inputs

Check the show docker tags step in my repo:
https://github.com/fdm-monster/fdm-monster/actions/runs/4953172047/jobs/8860357559
I've mitigated the undefined tag.

However this one still has the undefined tag:
https://github.com/fdm-monster/fdm-monster/actions/runs/4953158427/jobs/8860330428