wifimanager: use asyncCall to avoid timeout when adding connections (#34273)

* use asyncCall to avoid timeout when adding Wi-Fi connections

* use async call for addTetheringConnection

* only this change

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Co-authored-by: Shane Smiskol <shane@smiskol.com>

selfdrive/ui/qt/network/wifi_manager.cc

@@ -203,7 +203,7 @@ void WifiManager::connect(const Network &n, const bool is_hidden, const QString
   connection["ipv4"]["dns-priority"] = 600;
   connection["ipv6"]["method"] = "ignore";
 
-  call(NM_DBUS_PATH_SETTINGS, NM_DBUS_INTERFACE_SETTINGS, "AddConnection", QVariant::fromValue(connection));
+  asyncCall(NM_DBUS_PATH_SETTINGS, NM_DBUS_INTERFACE_SETTINGS, "AddConnection", QVariant::fromValue(connection));
 }
 
 void WifiManager::deactivateConnectionBySsid(const QString &ssid) {