ssh keeps asking for passphrase
### Backstory

I followed [this tutorial](https://github.com/AlexGustafsson/homebridge-wol/wiki/Running-on-Synology-Docker-and-turn-Windows-10-on-off-using-SSH-and-Samba) to get ssh working on homebridge-wol on Unraid, albeit the only way I can get it to put my computer to sleep is to have ssh-keygen create a key without a passphrase which I know is unsafe. 

### Issue

I keep getting "Enter passphrase for key '/homebridge/id_rsa': " when I manually run the ssh command via homebridge terminal but when I run the ssh command via homekit on my phone I get this error in the logs 

> "HWOL-4001 An error occurred while trying to shut down the device. This is most likely not an issue with homebridge-wol itself. For more information see https://github.com/AlexGustafsson/homebridge-wol/wiki/Frequently-Asked-Questions#hwol-4001"

### Environment

```Markdown
- os and os version: Unraid 6.12.0-rc1
- node version: v18.13.0
- homebridge version: 1.6.0
- homebridge-wol version: 5.0.2
```


### Configuration

{
    "bridge": {
        "name": "Homebridge B89B",
        "username": "-snip-",
        "port": 51796,
        "pin": "302-91-740",
        "advertiser": "bonjour-hap"
    },
    "accessories": [
        {
            "name": "Garage Switch",
            "stateful": false,
            "dimmer": false,
            "reverse": false,
            "time": 1000,
            "random": false,
            "resettable": false,
            "brightness": 0,
            "disableLogging": false,
            "accessory": "DummySwitch",
            "_bridge": {
                "username": "-snip-",
                "port": 34710
            }
        },
        {
            "name": "Abhi-PC",
            "manufacturer": "Abhiiously",
            "model": "Abhi-PC",
            "host": "192.168.50.90",
            "pingInterval": 2,
            "pingsToChange": 5,
            "pingTimeout": 1,
            "pingCommandTimeout": 0,
            "mac": "-snip-",
            "startCommandTimeout": 0,
            "wakeGraceTime": 45,
            "wakeCommandTimeout": 0,
            "shutdownCommand": "ssh -o StrictHostKeyChecking=no -i /homebridge/id_rsa Abhi@192.168.50.90 \"C:\\Data\\PSTools\\psshutdown -d -t 2\"",
            "shutdownGraceTime": 5,
            "shutdownCommandTimeout": 0,
            "logLevel": "Info",
            "returnEarly": true,
            "_bridge": {
                "username": "-snip-",
                "port": 55532
            },
            "accessory": "NetworkDevice"
        }
    ],
    "platforms": [
        {
            "name": "Config",
            "port": 8581,
            "platform": "config"
        },
        {
            "name": "Plex Webhooks Platform",
            "sensors": [
                {
                    "name": "abhikbhatia",
                    "filters": [
                        [
                            {
                                "path": "Account.title",
                                "operator": "===",
                                "value": "abhikbhatia"
                            }
                        ]
                    ]
                },
                {
                    "name": "Abhiiously",
                    "filters": [
                        [
                            {
                                "path": "Account.title",
                                "operator": "===",
                                "value": "Abhiiously"
                            }
                        ]
                    ]
                }
            ],
            "_bridge": {
                "username": "-snip-",
                "port": 50255
            },
            "platform": "PlexWebhooks"
        },
        {
            "name": "TplinkSmarthome",
            "addCustomCharacteristics": true,
            "switchModels": [
                "HS200"
            ],
            "deviceTypes": [
                "plug"
            ],
            "platform": "TplinkSmarthome",
            "_bridge": {
                "username": "-snip-",
                "port": 52153
            }
        }
    ]
}


### Logs

```Markdown
When I follow these steps:
1. Make sure `logLevel` is set to `Debug` on all `NetworkDevice` accessories
2. Run `homebridge`
3. Let it run for a couple of minutes
4. Try to turn a device on or off using the plugin
5. Wait one minute
6. Repeat step 4

I get the following log:

[3/18/2023, 3:15:54 AM] [Abhi-PC] [NetworkDevice] Attempting to shut down the device using "ssh"
[3/18/2023, 3:15:54 AM] [Abhi-PC] [NetworkDevice] HWOL-4001 An error occurred while trying to shut down the device. This is most likely not an issue with homebridge-wol itself. For more information see https://github.com/AlexGustafsson/homebridge-wol/wiki/Frequently-Asked-Questions#hwol-4001
[3/18/2023, 3:15:54 AM] [Abhi-PC] [NetworkDevice] Error: Command failed: ssh -o StrictHostKeyChecking=no -i /homebridge/id_rsa Abhi@192.168.50.90 "C:\Data\PSTools\psshutdown -d -t 2"
Permission denied, please try again.
Permission denied, please try again.
Abhi@192.168.50.90: Permission denied (publickey,password,keyboard-interactive).
```
```


### Notes

_No response_