Migrate to logger.warning usage (#3056)

Signed-off-by: Emmanuel Ferdman <[email protected]>

Author: emmanuel-ferdman

src/huggingface_hub/_upload_large_folder.py

@@ -209,7 +209,7 @@ def target_chunk(self) -> int:
     def update_chunk(self, success: bool, nb_items: int, duration: float) -> None:
         with self._chunk_lock:
             if not success:
-                logger.warn(f"Failed to commit {nb_items} files at once. Will retry with less files in next batch.")
+                logger.warning(f"Failed to commit {nb_items} files at once. Will retry with less files in next batch.")
                 self._chunk_idx -= 1
             elif nb_items >= COMMIT_SIZE_SCALE[self._chunk_idx] and duration < 40:
                 logger.info(f"Successfully committed {nb_items} at once. Increasing the limit for next batch.")