Update GTFS RT positions location (FTP server returnin auth errors)

 config.php

@@ -1,7 +1,7 @@
<?php
$sources = [
    'bus' => [
        'gtfsrt' => 'ftp://ztp.krakow.pl/pliki-gtfs/VehiclePositions_A.pb',
        'gtfsrt' => 'http://gtfs.ztp.krakow.pl/VehiclePositions_A.pb',
        'gtfsrt_file' => 'VehiclePositions_A.pb',
        'ttss' => 'http://ttss.mpk.krakow.pl/internetservice/geoserviceDispatcher/services/vehicleinfo/vehicles',
        'ttss_file' => 'vehicles_A.json',
@@ -12,7 +12,7 @@
        'prefix' => 'b',
    ],
    'tram' => [
        'gtfsrt' => 'ftp://ztp.krakow.pl/pliki-gtfs/VehiclePositions_T.pb',
        'gtfsrt' => 'http://gtfs.ztp.krakow.pl/VehiclePositions_T.pb',
        'gtfsrt_file' => 'VehiclePositions_T.pb',
        'ttss' => 'http://www.ttss.krakow.pl/internetservice/geoserviceDispatcher/services/vehicleinfo/vehicles?positionType=CORRECTED',
        'ttss_file' => 'vehicles_T.json',