update filename for mnist fsdp test

Signed-off-by: ashors1 <[email protected]>

tests/collections/llm/test_mnist_model_nemo2_fsdp.py

@@ -525,6 +525,7 @@ def run_train_mnist_litautoencoder_with_fsdp_strategy_single_gpu():
                 every_n_train_steps=5,
                 # Enables the .nemo file-like checkpointing where all IOMixins are under SerDe
                 always_save_context=True,
+                filename="{model_name}--{val_loss:.2f}-{step}-{consumed_samples}",
             )
             root_dir = tmpdir
             save_dir = root_dir / name