user/harfbuzz: bump to 1.8.8

user/harfbuzz/APKBUILD

 # Contributor: Sören Tempel <soeren+alpinelinux@soeren-tempel.net>
 # Maintainer: 
 pkgname=harfbuzz
-pkgver=1.8.2
+pkgver=1.8.8
 pkgrel=0
 pkgdesc="Text shaping library"
 url="https://www.freedesktop.org/wiki/Software/HarfBuzz"
@@ -56,4 +56,4 @@ icu() {
 	mv "$pkgdir"/usr/lib/lib*icu.so.* "$subpkgdir"/usr/lib/
 }
 
-sha512sums="c88a3e9e55866608647318a1af7c5d848863cd894d635583b8a2d2a7a02eea875b7a5a4f0f38555d80f2e81628743e40710f5e6f9251bf629f1d15ac51103e5a  harfbuzz-1.8.2.tar.bz2"
+sha512sums="eb96cd710571a96473b20bc9a01dadf2a3c11224497e52c63368e8edec64a8eb7085dd847c78111b798a1e8a6a950f0a04c930209822aabf13cf86d7a53b1f79  harfbuzz-1.8.8.tar.bz2"