revert part of https://github.com/opnsense/core/commit/9a22c04f1cdfa12091ba6f5016c44c6b9c6046cf

src/opnsense/service/conf/actions.d/actions_webgui.conf

-[restart]
-command:/usr/local/etc/rc.restart_webgui
-parameters:%s
-type:script
-message:starting web configurator

src/www/system_advanced_admin.php

@@ -253,7 +253,7 @@ if ($_SERVER['REQUEST_METHOD'] === 'GET') {
 
             if ($config['system']['ssh']['enabled']) {
                 log_error(gettext("secure shell configuration has changed. Restarting sshd."));
-                configd_run("sshd restart", true);
+                mwexec_bg('/usr/local/etc/rc.restart_webgui 2');
             }
         }
         if ($restart_webgui) {