Update an identity

curl --request PATCH \
  --url 'https://api.orq.ai/v2/identities/customer_12345' \
  --header 'Authorization: Bearer $ORQ_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
    "display_name": "Ada L.",
    "tags": ["enterprise", "priority"],
    "metadata": {
      "plan": "enterprise",
      "lifecycle": "renewal"
    }
  }'

{
  "identity": {
    "_id": "<string>",
    "external_id": "<string>",
    "workspace_id": "<string>",
    "created": "<string>",
    "updated": "<string>",
    "display_name": "<string>",
    "email": "<string>",
    "avatar_url": "<string>",
    "tags": [
      "<string>"
    ],
    "metadata": {},
    "metrics": {
      "total_tokens": 123,
      "total_cost": 123,
      "total_requests": 123,
      "error_rate": 123
    }
  }
}