update micro/cli to urfave/cli/v2 and fix go-micro

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

config/source/cli/options.go

@@ -3,7 +3,7 @@ package cli
 import (
 	"context"
 
-	"github.com/micro/cli"
+	"github.com/micro/cli/v2"
 	"github.com/micro/go-micro/config/source"
 )