Hi Morten,
Thanks for reporting that.
We have seen errors where clearing the cache helped the CLI run; I think it is worth a try, but it is a bit different from what you described.
However, we will have a look and repro the issue that you described and get back to you.
[Edit:
The documentation says: GitHub Actions must be run by the default Docker user (root).
We use USER 0
to set back to root as the base image as per docker best practices does set non-root user. ]
Thanks
Csaba