fix import paths for v2 release

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

client/service/proto/client.pb.micro.go

@@ -1,5 +1,5 @@
 // Code generated by protoc-gen-micro. DO NOT EDIT.
-// source: github.com/micro/go-micro/client/proto/client.proto
+// source: github.com/micro/go-micro/v2/client/proto/client.proto
 
 package go_micro_client
 
@@ -11,8 +11,8 @@ import (
 
 import (
 	context "context"
-	client "github.com/micro/go-micro/client"
-	server "github.com/micro/go-micro/server"
+	client "github.com/micro/go-micro/v2/client"
+	server "github.com/micro/go-micro/v2/server"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.