Upgrade to golangci-lint@v1.55.0 (#27756)

https://github.com/golangci/golangci-lint/releases/tag/v1.55.0

services/mailer/mailer.go

@@ -361,9 +361,8 @@ func (s *sendmailSender) Send(from string, to []string, msg io.WriterTo) error {
 		return err
 	} else if closeError != nil {
 		return closeError
-	} else {
-		return waitError
 	}
+	return waitError
 }
 
 // Sender sendmail mail sender