fix lint check error

Signed-off-by: Abhishree <[email protected]>

Author: athitten

src/megatron/bridge/recipes/nemotronh/nemotron_3_nano.py

@@ -165,6 +165,7 @@ def nemotron_3_nano_pretrain_config() -> ConfigContainer:
 
     return cfg
 
+
 class Nemotron3NanoFinetuneKwargs(TypedDict, total=False):
     """Typed options accepted by Nemotron 3 Nano finetune recipe helpers."""