stellarium: update to version 0.13.3

pkgs/applications/science/astronomy/stellarium/default.nix

···
 , libiconv }:
 
 stdenv.mkDerivation rec {
-  name = "stellarium-0.13.2";
+  name = "stellarium-0.13.3";
 
   src = fetchurl {
     url = "mirror://sourceforge/stellarium/${name}.tar.gz";
-    sha256 = "1asrq1v6vjzxd2zz92brdfs5f5b1qf8zwd7k2dpg3dl4shl8wwg5";
+    sha256 = "1ml6z2xda4vx61agdz54x8fw1b115gwc7rcy0zhz1jh6g5jvf0ij";
   };
 
   buildInputs = [ cmake freetype libpng mesa gettext openssl qt5.base qt5.quick1 perl libiconv ];