curl --request PUT \
  --url http://localhost:3000/projects/{projectId}/flags/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "key": "<string>",
  "description": "<string>",
  "is_active": true,
  "client_side_enabled": true,
  "analytics_enabled": true,
  "metadata": {},
  "envId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "flavor": "<string>"
}
'

{
  "statusCode": 123,
  "message": "OK",
  "data": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "name": "<string>",
    "key": "<string>",
    "is_active": true,
    "client_side_enabled": true,
    "analytics_enabled": true,
    "metadata": {},
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z",
    "deleted_at": "2023-11-07T05:31:56Z",
    "flag_value": {
      "targeting_rules_count": 0,
      "variations_count": 0,
      "segments_count": 0,
      "off_variation_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
    },
    "description": "<string>"
  }
}