fix: The 'warn' method is deprecated (#11105)

* The 'warn' method is deprecated

* fix test

examples/multiple-choice/run_swag.py

@@ -310,14 +310,14 @@ def main():
     if data_args.max_seq_length is None:
         max_seq_length = tokenizer.model_max_length
         if max_seq_length > 1024:
-            logger.warn(
+            logger.warning(
                 f"The tokenizer picked seems to have a very large `model_max_length` ({tokenizer.model_max_length}). "
                 "Picking 1024 instead. You can change that default value by passing --max_seq_length xxx."
             )
             max_seq_length = 1024
     else:
         if data_args.max_seq_length > tokenizer.model_max_length:
-            logger.warn(
+            logger.warning(
                 f"The max_seq_length passed ({data_args.max_seq_length}) is larger than the maximum length for the"
                 f"model ({tokenizer.model_max_length}). Using max_seq_length={tokenizer.model_max_length}."
             )