Update proxy_test.go

Author: gaby

middleware/proxy/proxy_test.go

@@ -70,7 +70,9 @@ func createRedirectServer(t *testing.T) string {
 
 	ln, err := net.Listen(fiber.NetworkTCP4, "127.0.0.1:0")
 	require.NoError(t, err)
-	t.Cleanup(func() { ln.Close() })
+	t.Cleanup(func() {
+		ln.Close() //nolint:errcheck // It is fine to ignore the error here
+	})
 	addr = ln.Addr().String()
 
 	startServer(app, ln)