update golangci

provider/etcd/provider.go

@@ -89,7 +89,14 @@ func (p *Provider) getEventKvs(events []*client.Event) ([]*pb.KeyValue, []*pb.Ke
 
 func (p *Provider) resolve(key string, kvs []*pb.KeyValue) (config.Variable, error) {
 	for _, kv := range kvs {
-		if kv != nil && string(kv.Key) == key {
+		switch {
+		case kv == nil:
+			return config.Variable{
+				Name:     key,
+				Provider: p.Name(),
+				Value:    nil,
+			}, nil
+		case string(kv.Key) == key:
 			return config.Variable{
 				Value:    value.JBytes(kv.Value),
 				Name:     key,