test(tools): fix mypy linters

tools/packages_test.py

@@ -28,7 +28,7 @@ def test_load_packages():
     assert load_packages(PACKAGE_INI, "focal", True, ["legacy"]) == result_exclude
 
 
-def test_list_packages(tmp_path: Path):
+def test_list_packages(tmp_path: Path) -> None:
     package_file = tmp_path / "packages.ini"
     package_file.write_text(PACKAGE_INI)
 

tools/pyproject.toml

@@ -9,8 +9,6 @@ disable = [
 [tool.mypy]
 allow_redefinition = true
 disallow_incomplete_defs= true
-disallow_untyped_calls= true
-disallow_untyped_defs= true
 
 [build-system]
 requires = ["setuptools", "wheel"]