Add kodonho/llama2-chat-koalpaca to eval queue

kodonho/llama2-chat-koalpaca_eval_request_False_float16_Original.json

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+{"model": "kodonho/llama2-chat-koalpaca", "base_model": "meta-llama/Llama-2-7b-chat-hf", "revision": "main", "private": false, "precision": "float16", "weight_type": "Original", "status": "PENDING", "submitted_time": "2024-01-07T05:36:14Z", "model_type": "\u2b55 : instruction-tuned"}