Add ehartford/samantha-1.2-mistral-7b to eval queue

ehartford/samantha-1.2-mistral-7b_eval_request_False_bfloat16_Original.json

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+{"model": "ehartford/samantha-1.2-mistral-7b", "base_model": "", "revision": "main", "private": false, "precision": "bfloat16", "weight_type": "Original", "status": "PENDING", "submitted_time": "2023-10-11T14:25:54Z", "model_type": "\u2b55 : instruction-tuned"}