JSON output does not output in original order

[YamatoSecurity]

I noticed that the fields in JSON output are outputted in alphabetical order instead of the original order. This makes creating rules a little difficult so it would be better to output in the original order.
Here is the rule that I was creating:

author: Zach Mathis
date: 2024/02/03
modified: 2024/02/03

title: Computer Startup
#details: 'MajorVer: %Data[1]% ¦ BuildNum: %Data[2]% ¦ RevNum: %Data[3]% ¦ UpdateBuildVer: %Data[4]%'
details: 'First: %Data[1]% ¦ Second: %Data[2]% ¦ Third: %Data[3]% ¦ Forth: %Data[4]% ¦ Fifth: %Data[5]%'
description: The computer started up. This event is important because it also contains the OS version information.

id: b27292f1a-18b3-4433-b340-151874a7d4e8
level: informational
status: test
logsource:
    product: windows
    service: system
detection:
    selection:
        Channel: System
        EventID: 6009
    condition: selection
falsepositives:
tags:
references:
ruletype: Hayabusa

When using csv-timeline (./target/release/hayabusa csv-timeline -d ../hayabusa-sample-evtx -r ../hayabusa-rules/hayabusa/builtin/System/Sys_6009_Info_ComputerStartup.yml -C -w -o 6009-test.csv), the order is correct:

"2014-11-26 06:52:38.000 +09:00","IE8Win7","Sys",6009,"info",3554,"Computer Startup","First: 6.01. ¦ Second: 7601 ¦ Third: Service Pack 1 ¦ Forth: Multiprocessor Free ¦ Fifth: 17514","-"

However, when I save to JSON (./hayabusa-2.13.-dev json-timeline -d ../hayabusa-sample-evtx -r ../hayabusa-rules/hayabusa/builtin/System/Sys_6009_Info_ComputerStartup.yml -w), the order changes:

{
    "Timestamp": "2016-09-20 22:07:41.000 +09:00",
    "Computer": "IE10Win7",
    "Channel": "Sys",
    "EventID": 6009,
    "Level": "info",
    "RecordID": 8273,
    "RuleTitle": "Computer Startup",
    "Details": {
        "Fifth": 17514,
        "First": "6.01.",
        "Forth": "Multiprocessor Free",
        "Second": 7601,
        "Third": "Service Pack 1"
    },
    "ExtraFieldInfo": {
    }
}

@hitenkoku Could you take a look at this?