AR.yaml in countries-5.7.0

- old
+ new

@@ -9,9 +9,10 @@
   alpha2: AR
   alpha3: ARG
   continent: South America
   country_code: '54'
   currency_code: ARS
+  distance_unit: KM
   g20_member: true
   gec: AR
   geo:
     latitude: -38.416097
     longitude: -63.61667199999999