Fix function call to match updated signature

Remove trust_remote_code parameter from function call since it was
removed from datasets 4.0.0

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

atlas-export.py

@@ -109,7 +109,7 @@ def build_atlas_command(args) -> tuple[list, str, Optional[Path]]:
     # If sampling is requested, pre-sample the dataset
     if args.sample:
         parquet_path, temp_data_dir = sample_dataset_to_parquet(
-            args.dataset_id, args.sample, args.split, args.trust_remote_code
+            args.dataset_id, args.sample, args.split
         )
         dataset_input = str(parquet_path)
     else: