Follow-up from "LO EFT samples for 4top"
The following discussions from !1161 (merged) should be addressed:
> This shouldn't be part of a JobOption. The first part was fixed properly in 21.6.60 and the second part is obviously gonna cause problems. `ATHENA_PROC_NUMBER` is set to 8 because the machine has 8 cores, it shouldn't be set to 80 in the JOs.Should we add the following checks/changes:
- if ATHENA_PROC_NUMBER > 1 and release < 21.2.60 => ERROR
- if ATHENA_PROC_NUMBER > 1 => run only 1 event in CI
- change the way we check whether the jO changes ATHENA_PROC_NUMBER - this would only be safe to catch in the transform btw, but until it is implemented there we could change the check to not use anywhere ATHENA_PROC_NUMBER (not even printing it), so e.g. look in the jO and if there is an uncommented line with "ATHENA_PROC_NUMBER" in it then give error