The old website build is breaking because it does not find the tor repo

There is a new error in town, and it is jenkins complaining it cannot build the 'old website':

[jenkins] website-build-webwml#8911: Still Failing: https://jenkins.torproject.org/job/website-build-webwml/8911/

If you open the job you can see that the build breaks because of:

15:13:59  > git config remote.origin.url https://git.torproject.org/tor.git # timeout=10
15:13:59  > git config --add remote.origin.fetch +refs/heads/*:refs/remotes/origin/* # timeout=10
15:13:59 Avoid second fetch
15:13:59  > git rev-parse origin/master^{commit} # timeout=10
15:13:59  > git rev-parse master^{commit} # timeout=10
15:13:59 ERROR: Couldn't find any revision to build. Verify the repository and branch configuration for this job.

I am not sure that we need to run it so often, now that it is not having any new content.

But if we do, we should change the reference. Maybe is the move from master to main?