[code] replace num_cpus by std:🧵:available_parallelism

src/main.rs

@@ -2,6 +2,7 @@ use actix_web::{App, HttpServer};
 use std::env;
 use std::net::IpAddr;
 use std::net::SocketAddr;
+use std::thread::available_parallelism;
 
 use clap::{crate_name, crate_version, Parser};
 
@@ -37,7 +38,7 @@ async fn main() -> std::io::Result<()> {
                 .prefer_utf8(true),
         )
     })
-    .workers(num_cpus::get())
+    .workers(available_parallelism().unwrap().get())
     .bind(sock)?
     .run()
     .await