Re-land D34058196 [sacrebleu==2.0.0] buckification [Back out D34503161]
Re-land D34058196 [sacrebleu==2.0.0] buckification [Back out D34503161]

Reviewed By: shreyanb98

Differential Revision: D34541824

fbshipit-source-id: 1dffc28bca971310920e1b1fdfe4016cc1aa1ceb

pytorch/fairseq,pytorch/fairseq,pytorch/fairseq