Items checked out are due one day too early

[kaibolay]

For example:

            "checkout_date": "2022-10-01T13:28:31.000Z",
            "date_due": "2022-10-29T00:00:00.000Z",

Looks like we shouldn't truncate the time and/or use the local timezone.

Context:

{
    "id": 957,
    "borrowernumber": 1114,
    [...]
    "items": [
        {
            "id": 109520,
            "barcode": "000011950",
            "category": "CD",
            "title": "Der kleine Drache Kokosnuss - DIe Jubilaeumsbox",
            "author": "Siegner, Ingo",
            "subject": "CD",
            "publicationyear": 2012,
            "publisher": "Edel Germany GmbH",
            "age": "K-1",
            "serial": 0,
            "seriestitle": "Drache Kokosnuss",
            "classification": "Hoerbuch",
            "itemnotes": "Originals - 5 CDs ",
            "replacementprice": 60,
            "state": "CIRCULATING",
            "isbn10": null,
            "isbn13": null,
            "antolin": null,
            "availability": "AVAILABLE",
            "borrowernumber": 1114,
            "checkout_date": "2022-10-01T13:28:31.000Z",
            "date_due": "2022-10-29T00:00:00.000Z",
            "returndate": null,
            "fine_due": 0,
            "fine_paid": 0,
            "renewable": true
        },
[...]
        ]
    },
    "orders": []
}