update to latest micro

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

go.mod

@@ -1,34 +1,11 @@
-module github.com/unistack-org/micro-registry-etcd
+module go.unistack.org/micro-register-etcd/v3
 
-go 1.15
-
-replace (
-	github.com/coreos/bbolt => go.etcd.io/bbolt v1.3.3
-	github.com/coreos/etcd => github.com/ozonru/etcd v3.3.20-grpc1.27-origmodule+incompatible
-	google.golang.org/grpc => google.golang.org/grpc v1.27.0
-)
+go 1.16
 
 require (
-	github.com/coreos/bbolt v1.3.2 // indirect
-	github.com/coreos/etcd v3.4.14+incompatible
-	github.com/coreos/go-semver v0.3.0 // indirect
-	github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e // indirect
-	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
-	github.com/gogo/protobuf v1.3.1 // indirect
-	github.com/golang/groupcache v0.0.0-20191027212112-611e8accdfc9 // indirect
-	github.com/gorilla/websocket v1.4.2 // indirect
-	github.com/grpc-ecosystem/go-grpc-middleware v1.2.1 // indirect
-	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway v1.9.0 // indirect
-	github.com/jonboulle/clockwork v0.2.0 // indirect
 	github.com/mitchellh/hashstructure v1.1.0
-	github.com/prometheus/client_golang v1.7.0 // indirect
-	github.com/soheilhy/cmux v0.1.4 // indirect
-	github.com/tmc/grpc-websocket-proxy v0.0.0-20200427203606-3cfed13b9966 // indirect
-	github.com/unistack-org/micro/v3 v3.0.2-0.20201129143054-8d6eb34aeeac
-	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
-	go.etcd.io/bbolt v1.3.5 // indirect
-	go.uber.org/zap v1.16.0
-	golang.org/x/time v0.0.0-20191024005414-555d28b269f0 // indirect
-	sigs.k8s.io/yaml v1.2.0 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.1
+	go.etcd.io/etcd/client/v3 v3.5.1
+	go.uber.org/zap v1.20.0
+	go.unistack.org/micro/v3 v3.8.20
 )