Best method of listening to NPM publishing status via GitHub Actions

I have a Lerna mono-repository which runs lerna publish across 23 packages, some private and some public. The GitHub Release/Tag events happen before NPM Publish is completed and so I can't listen to GitHub release events.

Instead, I'm looking for the best method for GitHub Actions to listen to an NPM Publish status so that upon successful completion I can run an additional script to bundle packages for deployment to CDN.

Guidance here would be much appreciated.