Use a single and bidirectional socket to communicate with the worker (fix Python3 <= 3.10 requirement)

[ibc]

Rationale

• In mediasoup server we used to use also a single bidirectional socket at the beginning, but there was a bug in Node for Windows so we ended spliting it into two (one for sending and one for receiving).
• Anyway, mediasoup-client-aiortc doesn't support Windows.
• And probably, such a bug in Node for Windows is already fixed (I don't care).

Awesome side effect

• This fixes #22 so we can use Python >= 3.11 in our macs :)
• Ok, tests do never complete in CI macOS machines, but anyway.

[ibc]

For whatever reason tests in CI in macOS machines never end...