GR.yaml in countries-5.7.0

- old
+ new

@@ -8,9 +8,10 @@
   alpha2: GR
   alpha3: GRC
   continent: Europe
   country_code: '30'
   currency_code: EUR
+  distance_unit: KM
   eea_member: true
   eu_member: true
   gec: GR
   geo:
     latitude: 39.074208