python3Packages.nampa: fix updateScript

pkgs/development/python-modules/nampa/default.nix

@@ -4,6 +4,7 @@
   fetchFromGitHub,
   pythonOlder,
   setuptools,
+  unstableGitUpdater,
 }:
 
 buildPythonPackage rec {
@@ -27,6 +28,8 @@ buildPythonPackage rec {
 
   pythonImportsCheck = [ "nampa" ];
 
+  passthru.updateScript = unstableGitUpdater { };
+
   meta = with lib; {
     description = "Python implementation of the FLIRT technology";
     homepage = "https://github.com/thebabush/nampa";