fix: allow 1024 concurrent API sync processes

This fixes an issue where the sync process would fail if there were more than 10 pending processes.

pfSense-pkg-RESTAPI/files/usr/local/pkg/RESTAPI/Dispatchers/RESTAPISettingsSyncDispatcher.inc

@@ -10,6 +10,7 @@ use RESTAPI\Models\RESTAPISettingsSync;
  */
 class RESTAPISettingsSyncDispatcher extends Dispatcher {
     public int $timeout = 60;
+    public int $max_queue = 1024;
 
     /**
      * Starts the REST API settings sync to HA peers.