fix import paths for v2 release

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

proto/test.micro.go

@@ -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.