main/cups: move needed files from -dev to main package

fixes #13676

main/cups/APKBUILD

 # Maintainer: Natanael Copa <ncopa@alpinelinux.org>
 pkgname=cups
 pkgver=2.4.1
-pkgrel=0
+pkgrel=1
 pkgdesc="The CUPS Printing System"
 url="https://github.com/OpenPrinting/cups/"
 arch="all"
@@ -90,6 +90,15 @@ package() {
 	find usr/share/cups/model -name "*.ppd" | xargs gzip -n9f
 }
 
+dev() {
+	default_dev
+
+	# needed for main cups operation
+	mv "$subpkgdir"/usr/share/cups/ppdc/* \
+		"$pkgdir"/usr/share/cups/ppdc
+	rmdir "$subpkgdir"/usr/share/cups/ppdc
+}
+
 libs() {
 	pkgdesc="CUPS libraries"
 	depends=""