Update variant

curl --location --request PUT 'https://api.ordermesh.io/catalog/v1/products//variants/' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
    "sku": "Mug11oz-White-BlackAccent",
    "attributes": [
        {
            "name": "Color",
            "value": "White With Black Accents"
        },
        {
            "name": "Size",
            "value": "11 oz"
        }
    ],
    "options": [
        {
            "name": "Gift Wrap",
            "value": "Standard Wrap"
        }
    ],
    "decorations": [
        {
            "area": "Default",
            "width": 2538,
            "height": 945,
            "dpi": 300,
            "method": "Embroidery",
            "price": {
                "currencies": null,
                "amount": 0.5,
                "currency": "USD"
            },
            "printImage": null,
            "attributes": [
                {
                    "name": "Placement",
                    "value": "Center Chest"
                }
            ]
        }
    ],
    "price": {
        "currencies": null,
        "amount": 7.9,
        "currency": "USD"
    },
    "status": "Active",
    "images": [
        "http://cdn.print.io/temp/38977dab92ba4699a79d84230e32fa85Mug_black_PreviewImage.png"
    ],
    "gtin": "1194",
    "upc": "Mug11oz-White-RedAccent",
    "partNumber": "1194",
    "extras": [
        {
            "name": "PimVariantId",
            "value": "PIM-VAR-73529"
        },
        {
            "name": "NetworkCertifiedDate",
            "value": "2026-01-15"
        }
    ]
}'