util: Fix shell builder quoting regressions (#44685)

Follow up to https://github.com/zed-industries/zed/pull/42382

Release Notes:

- N/A *or* Added/Fixed/Improved ...

crates/context_server/src/transport/stdio_transport.rs

@@ -33,12 +33,10 @@ impl StdioTransport {
     ) -> Result<Self> {
         let shell = cx.update(|cx| TerminalSettings::get(None, cx).shell.clone())?;
         let builder = ShellBuilder::new(&shell, cfg!(windows));
-        let (command, args) =
-            builder.build(Some(binary.executable.display().to_string()), &binary.args);
+        let mut command =
+            builder.build_command(Some(binary.executable.display().to_string()), &binary.args);
 
-        let mut command = util::command::new_smol_command(command);
         command
-            .args(args)
             .envs(binary.env.unwrap_or_default())
             .stdin(std::process::Stdio::piped())
             .stdout(std::process::Stdio::piped())