python-hetzner: Update to new version 0.3.0.

Changes are:

- Ability to set the name of a server (Server.set_name()).
- New sub-command (set-name) for hetznerctl to set server name.
- Show server name in list command.

Signed-off-by: aszlig <[e-mail]>

pkgs/top-level/python-packages.nix

···
 
   hetzner = buildPythonPackage rec {
     name = "hetzner-${version}";
-    version = "0.2.1";
+    version = "0.3.0";
 
     src = fetchurl {
       url = "https://github.com/RedMoonStudios/hetzner/archive/"
           + "v${version}.tar.gz";
-      sha256 = "0im7frzmbd1v89251ci8ahrjhw578nmksqlfcdakim0jr23si4wh";
+      sha256 = "10ywn7jbrv86ippf3bpbf01a4jnalwkkd0k7kxc39a55mfbx5s7d";
     };
 
     # not there yet, but coming soon.