transformers

1243ee7d - Full rework of the TF input/output embeddings and bias resizing (#9193)

Full rework of the TF input/output embeddings and bias resizing (#9193) * Start rework resizing * Rework bias/decoder resizing * Full resizing rework * Full resizing rework * Start to update the models with the new approach * Finish to update the models * Update all the tests * Update the template * Fix tests * Fix tests * Test a new approach * Refactoring * Refactoring * Refactoring * New rework * Rework BART * Rework bert+blenderbot * Rework CTRL * Rework Distilbert * Rework DPR * Rework Electra * Rework Flaubert * Rework Funnel * Rework GPT2 * Rework Longformer * Rework Lxmert * Rework marian+mbart * Rework mobilebert * Rework mpnet * Rework openai * Rework pegasus * Rework Roberta * Rework T5 * Rework xlm+xlnet * Rework template * Fix TFT5EncoderOnly + DPRs * Restore previous methods * Fix Funnel * Fix CTRL and TransforXL * Apply style * Apply Sylvain's comments * Restore a test in DPR * Address the comments * Fix bug * Apply style * remove unused import * Fix test * Forgot a method * missing test * Trigger CI * naming update * Rebase * Trigger CI