Update PL speed limits

Due to changes in Polish road classification on OSM, PL:trunk got deprecated. PL:expressway is being used instead: https://www.openstreetmap.org/changeset/159759046

Author: Dawid2849

profiles/car.lua

@@ -300,7 +300,7 @@ function setup()
       ['ph:rural'] = 80,
       ['ph:motorway'] = 100,
       ['pl:rural'] = 100,
-      ['pl:trunk'] = 120,
+      ['pl:expressway'] = 120,
       ['pl:motorway'] = 140,
       ["ro:trunk"] = 100,
       ["ru:living_street"] = 20,