[Windows] Web Client is unreasonably slow

Reproduce snippet:
```rust
#[actix_web::main]
async fn main() -> std::io::Result<()> {
let sys_time = std::time::SystemTime::now();
let start_time = sys_time.elapsed().unwrap();

let client = actix_web::client::Client::builder()
.connector(actix_web::client::Connector::new()
.timeout(Duration::from_secs(35))
.finish())
.timeout(Duration::from_secs(35))
.finish();

let response = client.get("https://google.com")
.send()
.await
.unwrap()
.body()
.await
.unwrap();
let end_time = sys_time.elapsed().unwrap();
let secs = end_time - start_time;
println!("{}", secs.as_secs());
return Ok(());
}
```

This code prints "20" on Windows, i.e. get request to Google takes 20 seconds.

Same code on Linux (WSL2) takes 0 seconds.

I don't have any clues what might be wrong, but perhaps it's related to DNS resolution?

`Cargo.toml`:
```toml
// ...

[dependencies]
actix-web = { version = "3", features = ["rustls"] }
```

Start with the Rust client code in the reproduction and the actix-web version 3 dependency in Cargo.toml. Run the snippet on Windows and Linux/WSL2, then investigate the request path and DNS-resolution hypothesis. Done means the same Google request no longer takes about 20 seconds on Windows and the behavior is covered by an appropriate regression test.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.