Change max_parallel_tasks to 1

Reduce the maximum number of parallel tasks from 5 to 1.

Signed-off-by: Jade Choghari <chogharijade@gmail.com>

src/lerobot/scripts/eval.py

@@ -538,7 +538,7 @@ def eval_policy_all(
     videos_dir: Path | None = None,
     return_episode_data: bool = False,
     start_seed: int | None = None,
-    max_parallel_tasks: int = 5,
+    max_parallel_tasks: int = 1,
     verbose: bool = True,
 ) -> dict:
     """