SDL_shadercross: Bump external DirectXShaderCompiler to release of 2026-02

From 631641c39db42a2e67c9af7cf6a4e52d7250bb39 Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Sat, 30 May 2026 04:59:18 +0200
Subject: [PATCH] Bump external DirectXShaderCompiler to release of 2026-02

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

diff --git a/external/DirectXShaderCompiler b/external/DirectXShaderCompiler
index 80a7375..1f679a4 160000
--- a/external/DirectXShaderCompiler
+++ b/external/DirectXShaderCompiler
@@ -1 +1 @@
-Subproject commit 80a7375441f416f6b3e3df815c14ac9132725450
+Subproject commit 1f679a48fcb94ab792d9f50d2c61296c3502cd11