python3Packages.executing: fix build

Adds missing setuptools-scm dependency.

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

@@ -1,6 +1,7 @@
 { lib
 , buildPythonPackage
 , fetchFromGitHub
+, setuptools-scm
 , asttokens
 }:
 
@@ -15,6 +16,10 @@ buildPythonPackage rec {
     sha256 = "1hqx94h6l2wg9sljiaajfay2nr62sqa819w3bxrz8cdki1abdygv";
   };
 
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
   preBuild = ''
     export SETUPTOOLS_SCM_PRETEND_VERSION="${version}"
   '';