clan-cli: enable mypy for tests

pkgs/clan-cli/tests/test_clan_admin.py

@@ -1,16 +1,20 @@
 import argparse
+from typing import Union
+
+import pytest_subprocess.fake_process
+from pytest_subprocess import utils
 
 from clan_cli import admin
 
 
-def test_make_parser():
+def test_make_parser() -> None:
     parser = argparse.ArgumentParser()
     admin.register_parser(parser)
 
 
 # using fp fixture from pytest-subprocess
-def test_create(fp):
-    cmd = ["nix", "flake", "init", "-t", fp.any()]
+def test_create(fp: pytest_subprocess.fake_process.FakeProcess) -> None:
+    cmd: list[Union[str, utils.Any]] = ["nix", "flake", "init", "-t", fp.any()]
     fp.register(cmd)
     args = argparse.Namespace(folder="./my-clan")
     admin.create(args)