Name of a tag defaults to github.ref

[Osiris-Team]

This also should prevent creating a new release and simply upload the assets to the existing release to support repositories that create the release manually but also want to use this action.

Currently when using github.ref as tag name it shows the following error:

...
Generating release tag
  Attempting to create or update release tag "refs/tags/1.9"
  Could not create new tag "refs/tags/refs/tags/1.9" (Sorry, branch or tag names starting with 'refs/' are not allowed.) therefore updating existing tag "tags/refs/tags/1.9"
  Error: Reference does not exist
  D:\a\_actions\marvinpinto\action-automatic-releases\latest\dist\index.js:1
...

[Erudition]

It gave you the error: Sorry, branch or tag names starting with 'refs/' are not allowed.

github.ref has a whole slash-separated path in it:
https://docs.github.com/en/actions/learn-github-actions/contexts#github-context

Use github.ref_name instead to avoid the slashes.