main/groff: perl is a runtime dependency

fixes #15437

main/groff/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=groff
 pkgver=1.23.0
-pkgrel=1
+pkgrel=2
 pkgdesc="GNU troff text-formatting system"
 url="https://www.gnu.org/software/groff/groff.html"
 arch="all"
 license="GPL-3.0-or-later"
-makedepends="perl bison zlib-dev texinfo"
+depends="perl"
+makedepends="bison zlib-dev texinfo"
 checkdepends="diffutils"
 subpackages="$pkgname-doc"
 source="https://ftp.gnu.org/gnu/groff/groff-$pkgver.tar.gz