update precision values in gpt eval requests

leaderboard/gpt-3.5-turbo_eval_request_0shot.json

@@ -1 +1 @@
-{"model": "gpt-3.5-turbo", "base_model": "", "revision": "main", "private": false, "precision": "float16", "weight_type": "Original", "status": "FINISHED", "submitted_time": "2024-07-13T11:55:09", "model_type": "\ud83d\udfe2 : pretrained", "likes": 0, "params": 0.1, "license": "custom"}
+{"model": "gpt-3.5-turbo", "base_model": "", "revision": "main", "private": false, "precision": "?", "weight_type": "Original", "status": "FINISHED", "submitted_time": "2024-07-13T11:55:09", "model_type": "\ud83d\udfe2 : pretrained", "likes": 0, "params": 0.1, "license": "custom"}

leaderboard/gpt-4-turbo_eval_request_0shot.json

@@ -1 +1 @@
-{"model": "gpt-4-turbo", "base_model": "", "revision": "main", "private": false, "precision": "float16", "weight_type": "Original", "status": "FINISHED", "submitted_time": "2024-07-13T11:55:09", "model_type": "\ud83d\udfe2 : pretrained", "likes": 0, "params": 0.1, "license": "custom"}
+{"model": "gpt-4-turbo", "base_model": "", "revision": "main", "private": false, "precision": "?", "weight_type": "Original", "status": "FINISHED", "submitted_time": "2024-07-13T11:55:09", "model_type": "\ud83d\udfe2 : pretrained", "likes": 0, "params": 0.1, "license": "custom"}

leaderboard/gpt-4o_eval_request_0shot.json

@@ -1 +1 @@
-{"model": "gpt-4o", "base_model": "", "revision": "main", "private": false, "precision": "float16", "weight_type": "Original", "status": "FINISHED", "submitted_time": "2024-07-13T11:55:09", "model_type": "\ud83d\udfe2 : pretrained", "likes": 0, "params": 0.1, "license": "custom"}
+{"model": "gpt-4o", "base_model": "", "revision": "main", "private": false, "precision": "?", "weight_type": "Original", "status": "FINISHED", "submitted_time": "2024-07-13T11:55:09", "model_type": "\ud83d\udfe2 : pretrained", "likes": 0, "params": 0.1, "license": "custom"}