[data] fix mm pluigin for qwen omni video training (#9388)

Co-authored-by: frozenleaves <frozen@Mac.local>

src/llamafactory/launcher.py

@@ -57,7 +57,7 @@ def launch():
     if is_env_enabled("USE_MCA"):
     # force use torchrun
         os.environ["FORCE_TORCHRUN"] = "1"
-    
+
     if command == "train" and (is_env_enabled("FORCE_TORCHRUN") or (get_device_count() > 1 and not use_ray())):
         # launch distributed training
         nnodes = os.getenv("NNODES", "1")