Update channel positions

curl --request PATCH \
  --url https://api.fluxer.app/v1/guilds/{guild_id}/channels \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
[
  {
    "id": "<string>",
    "position": 4503599627370495,
    "parent_id": "<string>",
    "lock_permissions": true
  }
]
'

{
  "code": "ACCESS_DENIED",
  "message": "<string>",
  "errors": [
    {
      "path": "<string>",
      "message": "<string>",
      "code": "<string>"
    }
  ]
}