update meta after new episodes

meta/episodes.jsonl

@@ -40,3 +40,13 @@
 {"episode_index": 39, "tasks": ["Stack lego"], "length": 393}
 {"episode_index": 40, "tasks": ["Stack lego"], "length": 327}
 {"episode_index": 41, "tasks": ["Stack lego"], "length": 369}
+{"episode_index": 42, "tasks": ["Stack lego"], "length": 387}
+{"episode_index": 43, "tasks": ["Stack lego"], "length": 277}
+{"episode_index": 44, "tasks": ["Stack lego"], "length": 287}
+{"episode_index": 45, "tasks": ["Stack lego"], "length": 374}
+{"episode_index": 46, "tasks": ["Stack lego"], "length": 234}
+{"episode_index": 47, "tasks": ["Stack lego"], "length": 345}
+{"episode_index": 48, "tasks": ["Stack lego"], "length": 302}
+{"episode_index": 49, "tasks": ["Stack lego"], "length": 333}
+{"episode_index": 50, "tasks": ["Stack lego"], "length": 237}
+{"episode_index": 51, "tasks": ["Stack lego"], "length": 298}