We had a pipeline working a few days ago on Mac on a private runner (We cant use github hosted mac runners because GitHub doesnt scale well for chromium browser builds) with this using the newest version, and as of today after the update it no longer installs and just spins its wheels and does nothing for as long as it is allowed to time out if the step is used. No debug output, nothing just a process that sits doing nothing before it dies.
You broke your actions release in the newest update, please fix it.
And please add some kind of unit test or something so you can test your code before releasing it on production.