Create return B2C Shipment

curl --location -g --request POST '/{{return_b2c_shipment}}/create' \
--header 'Authorization: {{token}}' \
--header 'Accept-Language: vi' \
--header 'Content-Type: application/json' \
--data-raw '{
    "warehouse_code": "ONF_WH_HN_LB",
    "merchant_return_tracking_code_reference": "{{merchant_return_tracking_code_reference}}",
    "shipment_tracking_code": "OASC209011649",
    "return_courier_tracking_code": "{{return_courier_tracking_code}}",
    "carrier_code": "GHN",
    "return_items": [
        {
            "oasin": "OASIN4091782",
            "product_quantity": 3
        },
        {
            "oasin": "OASIN7426319",
            "product_quantity": 3
        }
    ],
    "pickup": {
        "pickup_recipient_name": "ABC",
        "pickup_recipient_phone_number": "0987654321",
        "pickup_recipient_address": "123 Nguyen Van Linh, HCM",
        "pickup_recipient_district": "District 1",
        "pickup_recipient_ward": " Ward 1",
        "pickup_recipient_city": "HCM"
    },
    "return_reason": "Customer requested return"
}'