[FEATURE] bind webhook server to unix socket?

[racinette]

What kind of feature are you missing? Where do you notice a shortcoming of PTB?

The usual thing to do with python web servers is to put them behind a reverse proxy, such as NGINX. And the usual thing to do to a server behind NGINX is to run it locally bound to a unix socket. However, there seems to be no way to do just that currently in PTB, as far as I can see in the webhookhandler.py file?

Describe the solution you'd like

I think I'd be nice to have an additional parameter in the WebhookServer constructor, such as unix_socket, which would bind the server to the specified unix socket instead of the host-port pair.

Describe alternatives you've considered

No response

Additional context

Here is the docs confirming, that currently you'd use NGINX only with a regular localhost connection.