🐛 fix(types): use keyword arg for pytest.skip

ty on 3.8 reports too-many-positional-arguments for pytest.skip().

Author: gaborbernat

tests/conftest.py

@@ -26,4 +26,5 @@ def _ensure_py_info_cache_empty(session_cache: DiskCache) -> Generator[None]:
 def _skip_if_test_in_system(session_cache: DiskCache) -> None:
     current = PythonInfo.current(session_cache)
     if current.system_executable is not None:  # pragma: no cover
-        pytest.skip("test not valid if run under system")
+        msg = "test not valid if run under system"
+        raise pytest.skip.Exception(msg)