SDL_image: update vendored dav1d (4f8e2)

From 4f8e23ef5d08e05e5e2ecd3240586ceb6bf63606 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 21 Oct 2025 20:40:10 +0300
Subject: [PATCH] update vendored dav1d

(cherry picked from commit 925c19db4d0bc9809fd3ac25c7e0ef771b668390)
---
 external/dav1d | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/external/dav1d b/external/dav1d
index b7c4e4c8..b9d837b3 160000
--- a/external/dav1d
+++ b/external/dav1d
@@ -1 +1 @@
-Subproject commit b7c4e4c849ef3541c79cf77d9774025e6c90dd7f
+Subproject commit b9d837b382e1bc05c1c54f0cfb7c78bb9551d6d5