epm play: add ProtonUp-Qt (eterbug #17377)

play.d/protonup-qt.sh

+#!/bin/sh
+
+PKGNAME=ProtonUp-Qt
+SUPPORTEDARCHES="x86_64"
+VERSION="$2"
+DESCRIPTION='Install and manage GE-Proton and Luxtorpeda for Steam and Wine-GE for Lutris with this graphical user interface'
+URL="https://github.com/DavidoTek/ProtonUp-Qt"
+
+. $(dirname $0)/common.sh
+
+PKGURL=$(eget --list --latest https://github.com/DavidoTek/ProtonUp-Qt/releases "$PKGNAME-$VERSION-x86_64.AppImage")
+
+install_pkgurl
+