B0ToKstJpsiToMuMu 2023 MC production FULLSTREAM - Update of !773 with isolation removal

This production is meant to supersede the part of AP !773 (merged) corresponding to the B0ToKstJpsiMuMu channel (11144002). The reason for this is that due to the presence of an event with very large occupancy (and probably due to some issue in the computation of the isolation in very busy events) the isolation variable takes very very long time to be computed. The issue has now been identified, but a fix is not yet available.