curl --request DELETE \
  --url https://api.bold-factory.com/v1/items/skus/{skuReference}/suppliers/{supplierReference} \
  --header 'Authorization: Bearer <token>'

{
  "type": "https://www.rfc-editor.org/rfc/rfc9110.html#name-401-unauthorized",
  "title": "Unauthorized",
  "status": 401,
  "detail": "You are not authenticated.",
  "instance": "GET /v1/items/skus"
}