main/parted: rebuild against readline 8

main/parted/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=parted
 pkgver=3.2
-pkgrel=7
+pkgrel=8
 pkgdesc="Utility to create, destroy, resize, check and copy partitions"
 url="https://www.gnu.org/software/parted/parted.html"
 arch="all"