SDL_mixer: update vendored libgme (again...) (07b6c)

From 07b6cd95cf61b10339016fc0f508bd6502e9bf57 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 24 Oct 2023 12:40:02 +0300
Subject: [PATCH] update vendored libgme (again...)

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

diff --git a/external/libgme b/external/libgme
index 57d80577..618fc176 160000
--- a/external/libgme
+++ b/external/libgme
@@ -1 +1 @@
-Subproject commit 57d80577edb1b7d6ee11c403a8058b2091a87343
+Subproject commit 618fc176ca0dd032f2bbe9698867ed149096d31e