SDL_ttf: update vendored harfbuzz for mingw for -mbig-obj assembler switch. (a18a3)

From a18a3c5de3b62cd1b5849b454ba9f53505799ccb Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 29 Jul 2025 04:02:50 +0300
Subject: [PATCH] update vendored harfbuzz for mingw for -mbig-obj assembler
 switch.

Fixes: https://github.com/libsdl-org/SDL_ttf/issues/569

( cherry picked from commit a9b5a19b83f89376be52c99a9f654c314d99761b )
---
 external/harfbuzz | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/external/harfbuzz b/external/harfbuzz
index fbb8d128..06235fc6 160000
--- a/external/harfbuzz
+++ b/external/harfbuzz
@@ -1 +1 @@
-Subproject commit fbb8d128270da81725538a6cc5427e1a155a6580
+Subproject commit 06235fc62fca98d185c2872d206106710d093c48