kmbox: update to 20.12.0

[ci skip]

srcpkgs/kmbox/template

@@ -1,6 +1,6 @@
 # Template file for 'kmbox'
 pkgname=kmbox
-version=20.08.3
+version=20.12.0
 revision=1
 build_style=cmake
 hostmakedepends="extra-cmake-modules qt5-qmake qt5-host-tools python3
@@ -11,7 +11,7 @@ maintainer="John <me@johnnynator.dev>"
 license="LGPL-2.1-or-later"
 homepage="https://community.kde.org/KDE_PIM"
 distfiles="${KDE_SITE}/release-service/${version}/src/kmbox-${version}.tar.xz"
-checksum=0b2c32278fd4a66f80eb6021258591c7fa75200d64278f97a7130fcb22e3f546
+checksum=c7f32faa9b9a6424c2fa063c9b0b84c3a250a7fcd37a056e3f3997428fd28ed3
 
 kmbox-devel_package() {
 	depends="${sourcepkg}>=${version}_${revision}"