PersonalHotspot spoon does not work on macOS 12

The following sample code does nothing:

```lua
spoon.SpoonInstall:andUse(
"PersonalHotspot",
{
config = {
hotspotName = "iPhone",
},
}
)

spoon.PersonalHotspot:connect()
```

I had a look into the spoon's code and it is apparently supposed to open the Wi-Fi menu bar item and click on the entry. When I copy the [relevant Javascript code](https://github.com/Hammerspoon/Spoons/blob/master/Source/PersonalHotspot.spoon/init.lua#L56) over to macOS' script editor, it already fails to fetch the menu bar item:

```
Error: TypeError: undefined is not an object (evaluating 'wifiMenuBarItem.menus')
```

This might be a result of somewhat recent macOS updates. I can't find an easy solution right away but I leave this here for reference, in case I get around having a closer look.