Regression: Fix Alpine release tag

[sampaiodiego]

Proposed changes (including videos or screenshots)

The code was still relying in GIT_TAG that was removed in latest changes.

Issue(s)

Steps to test or reproduce

Further comments

[debdutdeb]

Why not use GITHUB_REF_NAME or github.ref_name instead? I see GIT_TAG being used in a lot of places.

[sampaiodiego]

Why not use GITHUB_REF_NAME or github.ref_name instead? I see GIT_TAG being used in a lot of places.

I think the concern was that GITHUB_REF_NAME can be also the branch name, but since we have the condition github.event_name == 'release' it should be safe using it.

maybe we can switch.. not an issue.

[debdutdeb]

I guess to make sure github.event.release.tag_name should also work.

[sampaiodiego]

pushed a change to use GITHUB_REF_NAME :)

added some debug echos as well..