update endpoint for testing

Author: evanliu048

crates/chat-cli/src/auth/portal.rs

@@ -35,7 +35,7 @@ use crate::auth::social::{
 use crate::database::Database;
 use crate::util::system_info::is_mwinit_available;
 
-const AUTH_PORTAL_URL: &str = "https://beta.app.kiro.dev/signin";
+const AUTH_PORTAL_URL: &str = "https://gamma.app.kiro.dev/signin";
 const DEFAULT_AUTHORIZATION_TIMEOUT: Duration = Duration::from_secs(600);
 
 #[derive(Debug, Clone)]