Add dependencies for the Qt6 backend and update GNOME backend dependency
Add dependencies for the Qt6 backend
Without kguiaddons and kwindowsystem, there are warnings in the build precess.
checking for KF6GuiAddons >= 5.240... no
configure: WARNING: pkg-config could not find the module KF6GuiAddons
configure: WARNING: pinentry-qt will be built without Caps Lock warning on Unix
checking for KF6WindowSystem >= 5.240... no
configure: WARNING: pkg-config could not find the module KF6WindowSystem
configure: WARNING: pinentry-qt will be built without window parenting on wayland
Add them as makedepends and optdepends.
Build GNOME backend with gcr-4
Upstream prefers gcr-4 over gcr-3. See https://dev.gnupg.org/rP069c2192234566c14840aefced795039d1f79137
Edited by nl6720