Model Mss510x not being discovered - no error found
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### What issue do you have? Please be as thorough and explicit as possible.
In the beta release - homebridge-meross@7.4.3-beta.0 and the prior (GA) release, when I use the plugin, I find accessories, but not the MSS510x wall switch.  I don't see any error / problems related to it either.  

I do get a HomeKit accessory that is unexpected (I have setting to exclude HomeKit) but this one still is there (other Meross HomeKit accessories are not).  Unsure if this is causing the MSS510x to not show up.  

### Details of your setup.
* Do you use (1) Homebridge UI-X (2) Homebridge CLI or (3) HOOBS? 
1 - Homebridge / Docker / Synology Diskstation


* Which version of Homebridge/HOOBS do you have?
Homebridge v1.3.8 (HAP v0.9.7) (Homebridge 308C)

* Which platform do you run Homebridge/HOOBS on (e.g. Raspberry Pi/Windows/HOOBS Box)? Please also mention your version of Node.js/NPM if known.
Docker / Synology Diskstation
OS	Alpine Linux (3.12.9)
Node.js Version	v16.13.1
Npm Version	v8.1.2

* Which version of this plugin (homebridge-meross) do you have? Has the issue started since upgrading from a previous version?
homebridge-meross@7.4.3-beta.0
Yes, the prior GA release had the same issue

* Which Meross devices do you have that are causing issues? Please include product models if applicable.
Mss510x - not being found
MSS620BR - is being added even though it is a HomeKit accessory and should not be added due to config setting

### Please paste any relevant logs below.
 
Config setting below - I've tried a few options, this is latest...

{
            "name": "Meross",
            "username": "my_email_here",
            "password": "my_password_here",
            "connection": "cloud",
            "ignoreHKNative": true,
            "_bridge": {
                "username": "0E:5E:7C:EC:9C:E9",
                "port": 49124
            },
            "platform": "Meross"
        }

I tried none, hybrid, and then Force Cloud – all seem to give me one accessory I was looking for (mss565x) but I get some HomeKit devices that I wanted excluded (MSS620BR – a two port outdoor switch) – I have other Meross Homekit devices that don’t show up currently, so maybe something odd about this one?  

But not seeing another wall switch that looks to be supported.  
Model	Mss510x
FW ver	4.2.3
Hw ver	4.0.0


Log snipit – I don’t see the Mss510x found…

[12/28/2021, 10:19:09 AM] Registering platform 'homebridge-lifx-lan.LifxLan'
[12/28/2021, 10:19:09 AM] ---
[12/28/2021, 10:19:09 AM] Loaded plugin: homebridge-meross@7.4.3-beta.0
[12/28/2021, 10:19:09 AM] Registering platform 'homebridge-meross.Meross'
[12/28/2021, 10:19:09 AM] ---
[12/28/2021, 10:19:10 AM] Loaded plugin: homebridge-myq@2.7.1
…
[12/28/2021, 10:19:09 AM] Registering platform 'homebridge-lifx-lan.LifxLan'
[12/28/2021, 10:19:09 AM] ---
[12/28/2021, 10:19:09 AM] Loaded plugin: homebridge-meross@7.4.3-beta.0
[12/28/2021, 10:19:09 AM] Registering platform 'homebridge-meross.Meross'
[12/28/2021, 10:19:09 AM] ---
[12/28/2021, 10:19:10 AM] Loaded plugin: homebridge-myq@2.7.1
…
[12/28/2021, 10:19:14 AM] [Nest] Initializing child bridge 0E:6D:8C:11:6E:66
[12/28/2021, 10:19:14 AM] [Meross] Initializing Meross platform...
[12/28/2021, 10:19:14 AM] [Meross] Initializing child bridge 0E:5E:7C:EC:9C:E9
[12/28/2021, 10:19:14 AM] [Life X] Initializing LifxLan platform...
…
[12/28/2021, 10:19:24 AM] [Hue] Launched child bridge with PID 5552
[12/28/2021, 10:19:24 AM] [Meross] Launched child bridge with PID 5566
[12/28/2021, 10:19:24 AM] [Wemo] [Wemo Plug 531] current state [off].
…
[12/28/2021, 10:19:27 AM] [homebridge-ring] Launched child bridge with PID 5553
[12/28/2021, 10:19:25 AM] Registering platform 'homebridge-meross.Meross'
[12/28/2021, 10:19:27 AM] [Meross] Loaded homebridge-meross v7.4.3-beta.0 child bridge successfully
[12/28/2021, 10:19:29 AM] [TuyaWebPlatform] Missing required `id` property on device configuration, received:
…
[12/28/2021, 10:19:31 AM] [@milo526/homebridge-tuya-web] This plugin generated a warning from the characteristic 'Brightness': characteristic was supplied illegal value: number 766.6666666666666 exceeded maximum of 100. See https://git.io/JtMGR for more info.
[12/28/2021, 10:19:27 AM] Loaded 4 cached accessories from cachedAccessories.0E5E7CEC9CE9.
[12/28/2021, 10:19:28 AM] [Meross] Initialising plugin v7.4.3-beta.0 | Node v16.13.1 | HB v1.3.8...
[12/28/2021, 10:19:29 AM] [Meross] Plugin initialised. Setting up accessories....
[12/28/2021, 10:19:29 AM] Homebridge v1.3.8 (HAP v0.9.7) (Meross) is running on port 49124.
[12/28/2021, 10:19:27 AM] Registering platform 'homebridge-dyson-pure-cool.DysonPureCoolPlatform'
…
[12/28/2021, 10:19:34 AM] Homebridge v1.3.8 (HAP v0.9.7) (homebridge-dyson-pure-cool) is running on port 52937.
[12/28/2021, 10:19:35 AM] [Meross] [Smart Outdoor Plug] initialising with options {"connection":"cloud","logging":"standard","showAs":"switch"}.
[12/28/2021, 10:19:35 AM] [Meross] [Switch 1] initialising with options {"connection":"cloud","logging":"standard","showAs":"switch"}.
[12/28/2021, 10:19:35 AM] [Meross] [Switch 2] initialising with options {"connection":"cloud","logging":"standard","showAs":"switch"}.
[12/28/2021, 10:19:35 AM] [Meross] [Smart Outdoor Plug] initialised with id [2102098694719790842148e1e94cab2a].
[12/28/2021, 10:19:35 AM] [Meross] [downstairs hallway] initialising with options {"brightnessStep":1,"connection":"cloud","logging":"standard"}.
[12/28/2021, 10:19:35 AM] [Meross] [downstairs hallway] initialised with id [2102056383821825584448e1e94b15dd].
[12/28/2021, 10:19:38 AM] [homebridge-lifx-lan] This plugin slows down Homebridge.
…
[12/28/2021, 10:19:41 AM] [myQ] myQ API: Successfully connected to the myQ API.
[12/28/2021, 10:19:41 AM] Loaded 2 cached accessories from cachedAccessories.0E345C443D85.
[12/28/2021, 10:19:41 AM] [Meross] ✓ Setup complete. This plugin has been made with ♥ by bwp91 from the UK!
[12/28/2021, 10:19:41 AM] [Meross] [Smart Outdoor Plug] has been reported [offline].
[12/28/2021, 10:19:41 AM] [Meross] [Switch 1] has been reported [offline].
[12/28/2021, 10:19:41 AM] [homebridge-ring] Configuring cached accessory
…
[12/28/2021, 10:19:41 AM] [homebridge-ring] Configuring cached accessory 8ba9b19e-da7e-40c9-8285-36991cf2426a Roswell Mode
[12/28/2021, 10:19:41 AM] [Meross] [Switch 2] has been reported [offline].
[12/28/2021, 10:19:41 AM] [Meross] [downstairs hallway] has been reported [offline].
[12/28/2021, 10:19:43 AM] [myQ] myQ API: Discovered device family garagedoor: Garage Door (serial number: CG08601DB69E, gateway: GW0F000F5FAF).

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