main/libxcb: upgrade to 1.15

main/libxcb/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=libxcb
-pkgver=1.14
-pkgrel=2
+pkgver=1.15
+pkgrel=0
 pkgdesc="X11 client-side library"
 url="https://xcb.freedesktop.org"
 arch="all"
@@ -32,4 +32,6 @@ check() {
 	make check
 }
 
-sha512sums="b90a23204b0d2c29d8b115577edb01df0465e02d6a8876550fecd62375d24a5d5f872ddd5946772ddba077cadce75b12c7a6d218469dc30b5b92bc82188e8bc6  libxcb-1.14.tar.xz"
+sha512sums="
+f6c7d766b7cf9cab6abe948ee424cbae6951dbfe2f76fa58a109cdc05b0f0919dcc4e38176a22ff4b95fc1e38596115317e32ba33b24cae0035a4e30dbcbdad9  libxcb-1.15.tar.xz
+"