Consider using gunicorn as internal server instead of wsgiref

[kevin1024]

httpbin is deployed in production using gunicorn. The intent of pytest-httpbin is to provide a local copy of the hosted version of httpbin. Therefore, to keep everything as similar as possible, I should probably use gunicorn as the web server instead of wsgiref.

[graingert]

gunicorn doesn't run on windows, so I'd probably go for waitress instead

[graingert]

Ah waitress doesn't support Https. Maybe uvicorn+asgiref.WsgiToAsgi will work here