Branches and Tagging Don't Match Github Recommendations

[wagenet]

Right now, v1 is a branch, which works, but there really should be a v1 tag pointing to the latest v1 release:

Move the major version tag (v1, v2, etc.) to point to the Git ref of the current release. For more information, see "Git basics - tagging."
https://help.github.com/en/actions/building-actions/about-actions#versioning-your-action

[eregon]

A moving tag is a git anti-pattern IMHO.
This has been discussed here: actions/toolkit#214
I think upstream decisions went wrong here, and it's unclear to me why v1 was ever a tag for some GitHub Actions.

A branch is much safer, idiomatic and disallows non-linear pushes, etc.
So I don't plan to change this, and there is already automation bumping the v1 branch on release.

The README is fairly clear about this:

This action follows semantic versioning with a moving v1 branch. This follows the recommendations of GitHub Actions.

Whatever relies on v1 being a tag should accept a branch too.