make m1n1 package compatible with new way to package things

[m1-debian] / installer_data.json

{
    "os_list": [
        {
            "name": "Debian bookworm (testing) packaged by Thomas Glanzmann",
            "default_os_name": "Debian",
            "boot_object": "m1n1.bin",
            "next_object": "m1n1/boot.bin",
            "package": "debian-base.zip",
            "supported_fw": ["12.3", "12.4"],
            "partitions": [
                {
                    "name": "EFI",
                    "type": "EFI",
                    "size": "512MB",
                    "format": "fat",
                    "copy_firmware": true,
                    "copy_installer_data": true,
                    "source": "esp"
                },
                {
                    "name": "Root",
                    "type": "Linux",
                    "size": "5GB",
                    "expand": true,
                    "image": "media"
                }
            ]
        },
        {
            "name": "Fedora 35 Workstation packaged by Thomas Glanzmann",
            "default_os_name": "Fedora",
            "boot_object": "m1n1.bin",
            "next_object": "m1n1/boot.bin",
            "package": "fc35-base-2022-07-28.zip",
            "supported_fw": ["12.3", "12.4"],
            "partitions": [
                {
                    "name": "EFI",
                    "type": "EFI",
                    "size": "512MB",
                    "format": "fat",
                    "volume_id": "0x1d531917",
                    "copy_firmware": true,
                    "copy_installer_data": true,
                    "source": "esp"
                },
                {
                    "name": "Root",
                    "type": "Linux",
                    "size": "21GB",
                    "expand": true,
                    "image": "media"
                }
            ]
        }
    ]
}