testing/font-ipa: drop maintainership

Maintainer no longer active, didn't use Alpine Linux for 2-3 years

testing/font-ipa/APKBUILD

-# Maintainer: Adrian Siekierka <kontakt@asie.pl>
+# Contributor: Adrian Siekierka <kontakt@asie.pl>
+# Maintainer:
 pkgname=font-ipa
 pkgver=003.03
-pkgrel=0
+pkgrel=1
 pkgdesc="Japanese outline fonts by Information-technology Promotion Agency"
 url="http://ipafont.ipa.go.jp/"
 arch="noarch"