Update generation

curl --request PATCH \
  --url https://app.mavera.io/api/v1/generations/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "title": "<string>"
}
'

{
  "id": "<string>",
  "object": "generation",
  "title": "<string>",
  "app": {
    "id": "<string>",
    "name": "<string>",
    "category": "<string>"
  },
  "brand_voice": {
    "id": "<string>",
    "label": "<string>"
  },
  "input_data": {},
  "output": "<string>",
  "content_type": "markdown",
  "workspace_id": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}