Changes to Crear endpoint de webhook

the label request property's minLength was increased from 0 to 1

the label request property's maxLength was set to 120

added the new product.created enum value to the data/enabled_events/items response property for the response status 201

added the new product.updated enum value to the data/enabled_events/items response property for the response status 201

added the new product.created enum value to the request property enabled_events/items

added the new product.updated enum value to the request property enabled_events/items

added the non-success response with the status 503

added the optional property error/details/items/metadata to the response with the 400 status

added the optional property error/details/items/metadata to the response with the 401 status

added the optional property error/details/items/metadata to the response with the 403 status

added the optional property error/details/items/metadata to the response with the 409 status

added the optional property error/details/items/metadata to the response with the 429 status

added the optional property error/details/items/metadata to the response with the 500 status