Fix missing `trust_remote_code` flag for AutoTokenizer in utils.peft (#1270)

Peft loading function was missing the
`trust_remote_code=trust_remote_code` argument causing the custom
tokenizer code to be not found.


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@Narsil

server/text_generation_server/utils/peft.py

@@ -38,7 +38,7 @@ def download_and_unload_peft(model_id, revision, trust_remote_code):
     os.makedirs(model_id, exist_ok=True)
     cache_dir = model_id
     logger.info(f"Saving the newly created merged model to {cache_dir}")
-    tokenizer = AutoTokenizer.from_pretrained(base_model_id)
+    tokenizer = AutoTokenizer.from_pretrained(base_model_id, trust_remote_code=trust_remote_code)
     model.save_pretrained(cache_dir, safe_serialization=True)
     model.config.save_pretrained(cache_dir)
     tokenizer.save_pretrained(cache_dir)