move sample to group directory
This MR updates the location of the training sample to use the group disk:
/eos/atlas/atlascerngroupdisk/perf-flavtag/training/training_gn2_fold3_20231205_mc20mc23_combined_270M
This MR updates the location of the training sample to use the group disk:
/eos/atlas/atlascerngroupdisk/perf-flavtag/training/training_gn2_fold3_20231205_mc20mc23_combined_270M