client: Try to re-introduce HTTP/HTTPS proxy (#31002)

When building for the `x86_64-unknown-linux-musl` target, the default
`openssl-dev` is compiled for the GNU toolchain, which causes a build
error due to missing OpenSSL. This PR fixes the issue by avoiding the
use of OpenSSL on non-macOS and non-Windows platforms.


Release Notes:

- N/A

crates/client/src/client.rs

@@ -1,7 +1,7 @@
 #[cfg(any(test, feature = "test-support"))]
 pub mod test;
 
-mod socks;
+mod proxy;
 pub mod telemetry;
 pub mod user;
 pub mod zed_urls;
@@ -24,13 +24,13 @@ use gpui::{App, AsyncApp, Entity, Global, Task, WeakEntity, actions};
 use http_client::{AsyncBody, HttpClient, HttpClientWithUrl};
 use parking_lot::RwLock;
 use postage::watch;
+use proxy::connect_proxy_stream;
 use rand::prelude::*;
 use release_channel::{AppVersion, ReleaseChannel};
 use rpc::proto::{AnyTypedEnvelope, EnvelopedMessage, PeerId, RequestMessage};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 use settings::{Settings, SettingsSources};
-use socks::connect_socks_proxy_stream;
 use std::pin::Pin;
 use std::{
     any::TypeId,
@@ -1133,7 +1133,7 @@ impl Client {
                 let handle = cx.update(|cx| gpui_tokio::Tokio::handle(cx)).ok().unwrap();
                 let _guard = handle.enter();
                 match proxy {
-                    Some(proxy) => connect_socks_proxy_stream(&proxy, rpc_host).await?,
+                    Some(proxy) => connect_proxy_stream(&proxy, rpc_host).await?,
                     None => Box::new(TcpStream::connect(rpc_host).await?),
                 }
             };