feat(config): allow auto update

Signed-off-by: fufesou <linlong1266@gmail.com>

src/config.rs

@@ -2885,6 +2885,7 @@ pub mod keys {
         OPTION_DISABLE_UDP,
         OPTION_ALLOW_INSECURE_TLS_FALLBACK,
         OPTION_KEEP_AWAKE_DURING_INCOMING_SESSIONS,
+        OPTION_ALLOW_AUTO_UPDATE,
     ];
 
     // BUILDIN_SETTINGS