We have a 100-upload limit per commit. If you are hitting the too many upload issue, that is why. I don’t have a solution that works right now, but hopefully we can figure something out that will work for you.
If you are getting the Actions workflow run is stale, and your workflow doesn’t take more than 60 minutes, then please link. If it takes more than 60 minutes, let me know how long it takes. A workaround for now is to add the upload token.