SDL_ttf: update vendored harfbuzz (0a410)

From 0a41043384db57e53ea3536c86897b2a8a20595b Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 18 Mar 2025 20:33:20 +0300
Subject: [PATCH] update vendored harfbuzz

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

diff --git a/external/harfbuzz b/external/harfbuzz
index dee43a36..e9847949 160000
--- a/external/harfbuzz
+++ b/external/harfbuzz
@@ -1 +1 @@
-Subproject commit dee43a364347810bccdd5ce2e2079be9511c59eb
+Subproject commit e9847949049cba00658342876a6f8b2f9a7f8860