calibre: update to 4.4.0.

srcpkgs/calibre/template

@@ -1,6 +1,6 @@
 # Template file for 'calibre'
 pkgname=calibre
-version=4.3.0
+version=4.4.0
 revision=1
 build_style=python2-module
 pycompile_dirs="/usr/lib/calibre/"
@@ -23,7 +23,7 @@ license="GPL-3.0-only"
 homepage="https://calibre-ebook.com"
 changelog="https://raw.githubusercontent.com/kovidgoyal/calibre/master/Changelog.yaml"
 distfiles="https://download.calibre-ebook.com/${version}/calibre-${version}.tar.xz"
-checksum=cf19f19da993c496a045c49d89f9232dd5ab23034acad2d14cba0bfab8178420
+checksum=089ef0fedda62c0bf6f3fe87fbfe9c87e9537ff985bbd4cb376189326f6a77a2
 nocross=yes
 
 do_configure() {