[bugfix] logger: info_once crashed on the patched process-aware info (duplicate stacklevel)

_print_info_once passes stacklevel=2 into logger.info, and init_logger's
patched _info passed its own stacklevel=2 positionally into logger.log on
top of the caller's kwarg -> TypeError on every info_once call. Honor an
explicit stacklevel instead of passing the keyword twice.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

fastvideo/logger.py

@@ -114,7 +114,10 @@ def _info(logger: Logger,
     is_local_main_process = local_rank == 0
 
     if (main_process_only and is_main_process) or (local_main_process_only and is_local_main_process):
-        logger.log(logging.INFO, msg, *args, stacklevel=2, **kwargs)
+        # Honor an explicit stacklevel (info_once routes through here with
+        # stacklevel already set) instead of passing the keyword twice.
+        stacklevel = kwargs.pop("stacklevel", 2)
+        logger.log(logging.INFO, msg, *args, stacklevel=stacklevel, **kwargs)
 
     global _warned_local_main_process, _warned_main_process