Updating nested array of objects

I have this in a collection:

"_id": "62be0271d373b2f2fc1826a2",
        "condition": "new",
        "variants": [
            {
                "color_name": "Green",
                "items": [
                    {
                        "size": "S",
                        "price": 100,
                        "quantity": 1,
                        "_id": "62be0271d373b2f2fc1826a4"
                    },
                    {
                        "size": "M",
                        "price": 100,
                        "quantity": 2,
                        "_id": "62be0271d373b2f2fc1826a5"
                    }
                ],
                "_id": "62be0271d373b2f2fc1826a3"
            },
            {
                "color_name": "Blue",
                "items": [
                    {
                        "size": "S",
                        "price": 100,
                        "quantity": 1,
                        "_id": "62be0271d373b2f2fc1826a7"
                    },
                    {
                        "size": "S",
                        "price": 100,
                        "quantity": 1,
                        "_id": "62be0271d373b2f2fc1826a8"
                    }
                ],
                "_id": "62be0271d373b2f2fc1826a6"
            }
        ],
        "featured": true

I have this document in my mongodb collection:

        "_id": "62be0271d373b2f2fc1826a2",
        "condition": "new",
        "variants": [
            {
                "color_name": "Green",
                "items": [
                    {
                        "size": "S",
                        "price": 100,
                        "quantity": 1,
                        "_id": "62be0271d373b2f2fc1826a4"
                    },
                    {
                        "size": "M",
                        "price": 100,
                        "quantity": 2,
                        "_id": "62be0271d373b2f2fc1826a5"
                    }
                ],
                "_id": "62be0271d373b2f2fc1826a3"
            },
            {
                "color_name": "Blue",
                "items": [
                    {
                        "size": "S",
                        "price": 100,
                        "quantity": 1,
                        "_id": "62be0271d373b2f2fc1826a7"
                    },
                    {
                        "size": "S",
                        "price": 100,
                        "quantity": 1,
                        "_id": "62be0271d373b2f2fc1826a8"
                    }
                ],
                "_id": "62be0271d373b2f2fc1826a6"
            }
        ],
        "featured": true

I want to update only the quantity of the items field with _id = “62be0271d373b2f2fc1826a8”

NOTE: there may be more variants