Create alias (#4971)

# External (non-OpenAI) Pull Request Requirements

Before opening this Pull Request, please read the dedicated
"Contributing" markdown file or your PR may be closed:
https://github.com/openai/codex/blob/main/docs/contributing.md

If your PR conforms to our contribution guidelines, replace this text
with a detailed and high quality description of your changes.

Author: rakesh-oai

codex-rs/cli/src/main.rs

@@ -157,7 +157,7 @@ struct LoginCommand {
     )]
     api_key: Option<String>,
 
-    #[arg(long = "use-device-code")]
+    #[arg(long = "device-auth")]
     use_device_code: bool,
 
     /// EXPERIMENTAL: Use custom OAuth issuer base URL (advanced)