PrecompileMQTT payload contains temporary socket name invalid in Windows

[divbyzerofordummies]

When precompiling PrecompileMQTT, the precompile workload creates a MQTTClient.MockMQTTBroker by providing it a socket name /tmp/testmqtt.sock.
This name is then given as an argument to the listen function of the Sockets library, which creates a PipeServer and binds it to the given path:

function listen(path::AbstractString)
    sock = PipeServer()
    bind(sock, path) || throw(ArgumentError("could not listen on path $path"))
    return listen(sock)
end

However, according to here,

Windows doesn't support arbitrary paths, it requires that they conform to a specific pattern such that their name prefix (\\.\pipe\) uniquely identifies the filetype

A valid pipe name under Windows could be (?)

\\.\pipe\tmp\testmqtt.sock

At least this worked for me.

Version: 0.3.1 (specifically, Git hash 23f5429