👷‍♂️ Update release.yml to use recent guidance on publishing

[ryancheley]

During the migration of axe-selenium-python a discussion was opened asking about details of the sigtore action

Upon review it was discoverd that the sigstore action states

Important

Are you publishing a package to PyPI? If so, you do not need this action:
pypa/gh-action-pypi-publish
will handle signing for you!

Given this guidance, we should update release.yml to reflect this change