chore(storage): tcp and udp fields for all servers

- Updater code sets UDP and TCP compatibility for all providers
- Increase servers.json model versions for affected providers (mullvad, windscribe, privado, protonvpn, privatevpn)
- Remove retro-compatibility server defaults
- Update all affected providers servers data (mullvad, windscribe, privado, protonvpn, privatevpn)

internal/updater/providers/privado/hosttoserver.go

@@ -14,6 +14,7 @@ func (hts hostToServer) add(host string) {
 		return
 	}
 	server.Hostname = host
+	server.UDP = true
 	hts[host] = server
 }