SDL_mixer: update vendored wavpack. (bc7fe)

From bc7feb43de9b775c0dfe8330a4e91380ae4c602d Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Thu, 3 Apr 2025 17:50:20 +0300
Subject: [PATCH] update vendored wavpack.

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

diff --git a/external/wavpack b/external/wavpack
index 02efabe7..532b786d 160000
--- a/external/wavpack
+++ b/external/wavpack
@@ -1 +1 @@
-Subproject commit 02efabe73e1ac743ec35885f2b620cec3e996ca5
+Subproject commit 532b786d9609855509e77c9b992c7bc4e2486be4