Update policy

curl --request PATCH \
  --url https://api.orq.ai/v2/policies/{policy_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "description": "<string>",
  "display_name": "<string>",
  "enabled": true,
  "evaluators": [
    {
      "id": "<string>",
      "is_guardrail": true,
      "options": {},
      "sample_rate": 0.5
    }
  ],
  "limits": {},
  "project_id": "<string>",
  "timeout": 1001
}
'

{
  "_id": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "created_by_id": "<string>",
  "display_name": "<string>",
  "enabled": true,
  "project_id": "<string>",
  "slug": "<string>",
  "timeout": 1001,
  "updated_at": "2023-11-07T05:31:56Z",
  "updated_by_id": "<string>",
  "description": "<string>",
  "evaluators": [
    {
      "id": "<string>",
      "is_guardrail": true,
      "options": {},
      "sample_rate": 0.5
    }
  ],
  "limits": {
    "budget": {
      "amount": 500000.005,
      "currency": "usd"
    },
    "requests": {
      "amount": 500000000
    },
    "tokens": {
      "amount": 500000000
    }
  },
  "models_config": {
    "models": [
      {
        "model": "<string>",
        "display_name": "<string>",
        "integration_id": "<string>",
        "weight": 0.5
      }
    ]
  },
  "retry_config": {
    "count": 3,
    "on_codes": [
      123
    ]
  }
}