Trigger publish images when release happens

[rubenvp8510]

It seems that even if creating a release creates a tag, The publish image was not triggered. it seems like you need to explicitly push the tag to trigger it.

In this PR I also add the release published event (https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#release) in order to trigger this workflow with the new approach.

I had to run manually for this release in order to have the image published.

@andreasgerstmayr please review.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2f6c91d) 78.22% compared to head (a6ede9f) 78.22%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #696   +/-   ##
=======================================
  Coverage   78.22%   78.22%           
=======================================
  Files          66       66           
  Lines        5023     5023           
=======================================
  Hits         3929     3929           
  Misses        907      907           
  Partials      187      187           

Flag	Coverage Δ
unittests	78.22% <ø> (ø)

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[andreasgerstmayr]

Nice catch! That's odd that the release workflow doesn't get triggered, as this tag is still getting created/pushed when doing the release with the gh release create command.