user/rsibreak: bump to 0.12.8, modernise

user/rsibreak/APKBUILD

 # Contributor: A. Wilcox <awilfox@adelielinux.org>
 # Maintainer: A. Wilcox <awilfox@adelielinux.org>
 pkgname=rsibreak
-pkgver=0.12.7
+pkgver=0.12.8
 pkgrel=0
 pkgdesc="Helps you avoid wrist injury by telling you when to stop for a rest"
 url="https://www.kde.org/applications/utilities/rsibreak/"
 arch="all"
-license="GPL-2.0"
+license="GPL-2.0-only"
 depends=""
 makedepends="cmake extra-cmake-modules qt5-qtbase-dev kconfig-dev kcrash-dev
 	kconfigwidgets-dev kdbusaddons-dev kdoctools-dev kiconthemes-dev
 	ki18n-dev kidletime-dev knotifications-dev knotifyconfig-dev
 	ktextwidgets-dev kxmlgui-dev kwindowsystem-dev"
-install=""
 subpackages="$pkgname-doc $pkgname-lang"
 source="https://download.kde.org/stable/rsibreak/0.12/rsibreak-$pkgver.tar.xz"
-builddir="$srcdir/rsibreak-$pkgver"
 
 build() {
 	cd "$builddir"
@@ -43,4 +41,4 @@ package() {
 	make DESTDIR="$pkgdir" install
 }
 
-sha512sums="77da791a705549da159dee18ff160e051a79184e909af7ac9efcdbc2bcad66f6fc4994af71e0ccdf0033596cccc93c8d4642ae578846dc2aa38223c1a462008f  rsibreak-0.12.7.tar.xz"
+sha512sums="6ab0c43232e56278525ce5ba07a6c7a5f7bc5da74a8461e3cdaed7ae832304ac9f3c1b3ff0adfdeaab6b8231bdcecae4e8fee9529df97b8ce2208f4cf74f0eb1  rsibreak-0.12.8.tar.xz"