SDL_mixer: update vendored wavpack and vendored libgme.

From ddeaaaceeb9c4f48069bd7f35720947d63eaed36 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Mon, 23 Oct 2023 17:24:50 +0300
Subject: [PATCH] update vendored wavpack and vendored libgme.

---
 external/libgme  | 2 +-
 external/wavpack | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/external/libgme b/external/libgme
index 2f0f07cf..4bea983c 160000
--- a/external/libgme
+++ b/external/libgme
@@ -1 +1 @@
-Subproject commit 2f0f07cf7ff2d03f2632c2ab3cc19e37e8c158cf
+Subproject commit 4bea983cfd06205a482b028c77291b2a51cfaddb
diff --git a/external/wavpack b/external/wavpack
index 9020a678..640a7db3 160000
--- a/external/wavpack
+++ b/external/wavpack
@@ -1 +1 @@
-Subproject commit 9020a678d610aa7b099aa728ff4a33294f1ff659
+Subproject commit 640a7db338e5d7cb83d9d7d0af5a144962634c87