Enforce saveProcDir=False in MG joboptions

in the Madgraph JOs there is the possibility of saving the process directory or delete it. While keeping it is very useful for debugging, we try to enforce to have it to False for official production as it might give issues for some processes in grid jobs. Jan asked that if we are trying to enforce it systematically, it should be part of the logParser. We have discussed it a bit and were thinking whether it can be added a check in the logParser to make sure that it is set to saveProcDir=False and let the CI crash in case it is changed in any bug fix push to gitlab.