Maelstrom: Updated with the SDL 3.4.8 release

From 75052573b6907f751931bc0e6c843b818a8f4f76 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Fri, 1 May 2026 17:21:05 -0700
Subject: [PATCH] Updated with the SDL 3.4.8 release

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

diff --git a/external/SDL b/external/SDL
index 3aabb7bc..d9d55367 160000
--- a/external/SDL
+++ b/external/SDL
@@ -1 +1 @@
-Subproject commit 3aabb7bc5307324b67db9d45b6e0c48e7ad3a400
+Subproject commit d9d5536704d585616d4db3c8ba3c4ff6fc2757e1