Contribs: update harfbuzz to 3.4.0

The next release, 4.0, is a massive API change

(cherry picked from commit 6e3bfdbf11)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

contrib/src/harfbuzz/SHA512SUMS

@@ -1 +1 @@
-c9d88068d8017046842f444f02f31dbae109026ede943aaf265db5508de8b4b2be84203950f274a237f515bf7cbd361629d2032c6e8ee8f50354b430bba3a8ca  harfbuzz-3.2.0.tar.xz
+f300d041aa4af8f7957d5b352af399b9e411804a33ac710b3728247e23a02b867514537cc2b6fcf00746e71ac7a5a2a4b1392253bb5a888baa39b8a0193144c0  harfbuzz-3.4.0.tar.xz

contrib/src/harfbuzz/rules.mak

@@ -1,6 +1,6 @@
 # HARFBUZZ
 
-HARFBUZZ_VERSION := 3.2.0
+HARFBUZZ_VERSION := 3.4.0
 HARFBUZZ_URL := https://github.com/harfbuzz/harfbuzz/releases/download/$(HARFBUZZ_VERSION)/harfbuzz-$(HARFBUZZ_VERSION).tar.xz
 PKGS += harfbuzz
 ifeq ($(call need_pkg,"harfbuzz"),)