Update Price List Entry Endpoint

Name	Type	Description	Required
`id`	int	The id for the entry	No
`for`	string	What the entry applies to (e.g., all_products, all_products_unless_reduced, product, variant, category, tag, manufacturer)	No
`target`	string	Identifier of the target (e.g., id corresponding to the `for` or model for product, or sku for variant or name for category/tag/manufacturer)	No
`type`	string	Type of the price adjustment (e.g., fixed_price, fixed_price_decrease, fixed_price_increase, percentage_decrease, percentage_increase)	No
`price`	object	The Price object (not when `type` is percentage based)	No
`percentage`	float	The percentage of the price list entry (only when `type` is percentage based)	No
`for_price`	string	Which price the entry affects (e.g., sale_price, base_price, rrp, cost_price)	No

Name	Type	Description	Required
`amount`	float	The price including tax, in whole units (e.g. pounds not pence)	Yes
`currency`	string	The currency for the price, e.g. GBP	Yes

PUT /api/price-lists/{id}/entries/{id}

{
    "for": "product",
    "target": "model",
    "type": "percentage_decrease",
    "percentage": 20
}

{
    "priceListEntry": {
        "id": 1
    }
}