Feature request: Provide a flag to disable publishing helm chart to gh-pages

Hi,
I have following use-case:
I would like to only create releases for helm charts repository.
I don't want to publish the charts to gh-pages because my charts reside in a private repo.

This Github action does create releases but Actions page shows release pipeline failure because the action isn't able to push to gh-pages branch. So it would be nice if there is a feature flag to disable the option to host helm charts in github pages.

Start by tracing the GitHub Action entry point and the publishing path that pushes charts to the gh-pages branch. Add a flag that preserves release creation while skipping gh-pages publishing, then verify that the release workflow succeeds for charts in a private repository.

Written by the indexing model from the issue text.