fix reload server method

extension/server/extension.go

@@ -107,7 +107,10 @@ func (s *Server) reloadServer(config *tls.Config) error {
 	// close the current server
 	if s.httpsServer != nil {
 		// closing the server gracefully
-		if err := s.httpsServer.Close(); err != nil {
+		ctx, cancel := context.WithTimeout(s.ctx, 10*time.Second)
+		defer cancel()
+		// Use Shutdown instead of Close: Shutdown closes the listener before returning,
+		if err := s.httpsServer.Shutdown(ctx); err != nil {
 			s.logger.Error("Failed to shutdown HTTPS server", zap.Error(err))
 		}
 	}