main/orage: rebuild against libical-2.0

we need bump pkgrel so it actually gets rebuilt

main/orage/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=orage
 pkgver=4.12.1
-pkgrel=0
+pkgrel=1
 pkgdesc="A simple calendar application with reminders for Xfce"
 url="http://www.xfce.org/projects/"
 arch="all"