Add beam file for PbPb 2024 realistic conditions
- Beam file for the PbPb 2024 real conditions: https://gitlab.cern.ch/lhcb-simulation/mc-productions-setup/-/issues/51
- Parameters provided by Run Coordination: https://gitlab.cern.ch/lhcb-simulation/mc-productions-setup/-/issues/51#note_8875449