Issues and other findings during the tutorial

[jmcarcell]

(I'll edit as I see them)

• You can also use zsh with the Key4hep stack (in https://github.com/HEP-FCC/GenToAna-Tutorial//blob/main/Gen/ee/README.md?plain=1#L27 it says only bash works)
• Running in a machine with 64 threads with both the release and nightlies seems to use all the CPU and take a very long time when running whizard (in ee), while I was able to run it very quickly using Key4hep@LCG. Andrea ran it in fcc-ironic-03 and it crashed. Maybe change OMP_NUM_THREADS=1 whizard mumuH.sin to run with 1 thread.
• Still using the now-removed k4DataSvc in a few places
• Format of README files should be consistent (single lines vs multiple lines)
• MR in Gaudi removing ErrorMax: https://gitlab.cern.ch/gaudi/Gaudi/-/merge_requests/2000