Maint: migrate Cyberghost REGION to COUNTRY

internal/updater/providers/cyberghost/sort.go

@@ -8,12 +8,12 @@ import (
 
 func sortServers(servers []models.CyberghostServer) {
 	sort.Slice(servers, func(i, j int) bool {
-		if servers[i].Region == servers[j].Region {
+		if servers[i].Country == servers[j].Country {
 			if servers[i].Group == servers[j].Group {
 				return servers[i].Hostname < servers[j].Hostname
 			}
 			return servers[i].Group < servers[j].Group
 		}
-		return servers[i].Region < servers[j].Region
+		return servers[i].Country < servers[j].Country
 	})
 }