SDL_image: update vendored libjxl (6a857)

From 6a857aa44c7a0324fbc2780d4ea055eeff414268 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Fri, 11 Apr 2025 18:05:14 +0300
Subject: [PATCH] update vendored libjxl

---
 external/libjxl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/external/libjxl b/external/libjxl
index 1b0c5ad1..536a58e2 160000
--- a/external/libjxl
+++ b/external/libjxl
@@ -1 +1 @@
-Subproject commit 1b0c5ad1bbdff2d590a1a21df9675b116c42aa26
+Subproject commit 536a58e2f2a9cdf8676f6b8f6a16c566b762cf2b