tests: Upgrade our hook implementation for pytest 7

https://docs.pytest.org/en/7.4.x/deprecations.html#py-path-local-arguments-for-hooks-replaced-with-pathlib-path
https://docs.pytest.org/en/7.4.x/reference/reference.html#std-hook-pytest_ignore_collect

8.0.0 removes the "path" compatibility alias we used.

tests/conftest.py

@@ -184,11 +184,10 @@ def pytest_collection_modifyitems(config, items):
     items[:] = remaining_items
 
 
-def pytest_ignore_collect(path):
+def pytest_ignore_collect(collection_path: pathlib.Path) -> bool:
     """Ignore BDD tests if we're unable to run them."""
-    fspath = pathlib.Path(path)
     skip_bdd = hasattr(sys, 'frozen')
-    rel_path = fspath.relative_to(pathlib.Path(__file__).parent)
+    rel_path = collection_path.relative_to(pathlib.Path(__file__).parent)
     return rel_path == pathlib.Path('end2end') / 'features' and skip_bdd