python3Packages.asyncio-throttle: migrate to pyproject

pkgs/development/python-modules/asyncio-throttle/default.nix

@@ -4,12 +4,13 @@
   fetchFromGitHub,
   pytestCheckHook,
   pytest-asyncio,
+  setuptools,
 }:
 
 buildPythonPackage rec {
   pname = "asyncio-throttle";
   version = "1.0.2";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "hallazzang";
@@ -18,6 +19,8 @@ buildPythonPackage rec {
     sha256 = "1hsjcymdcm0hf4l68scf9n8j7ba89azgh96xhxrnyvwxfs5acnmv";
   };
 
+  build-system = [ setuptools ];
+
   nativeCheckInputs = [
     pytest-asyncio
     pytestCheckHook