Update a model router config

curl --request PUT \
  --url https://api-sandbox.featherhq.com/v1/model-router/configs/{config_id} \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "name": "<string>",
  "model_chain": [
    {
      "model": "<string>",
      "config": {
        "temperature": 123,
        "max_tokens": 123,
        "top_p": 123,
        "stop_sequences": [
          "<string>"
        ],
        "request_timeout_ms": 123,
        "thinking_budget": 2
      }
    }
  ],
  "description": "<string>",
  "is_default": true,
  "metadata": {}
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "organization_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "name": "<string>",
  "description": "<string>",
  "is_default": true,
  "model_chain": [
    {
      "model": "<string>",
      "config": {
        "temperature": 123,
        "max_tokens": 123,
        "top_p": 123,
        "stop_sequences": [
          "<string>"
        ],
        "request_timeout_ms": 123,
        "thinking_budget": 2
      }
    }
  ],
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "metadata": {}
}