Bump pkgrel to 5

Author: larskanis

compile/ruby-2.4.0/PKGBUILD

@@ -7,7 +7,7 @@ _realname=ruby
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=2.4.0
-pkgrel=4
+pkgrel=5
 pkgdesc="An object-oriented language for quick and easy programming (mingw-w64)"
 arch=('any')
 url="https://www.ruby-lang.org/en"