Update cleanup function

Author: Shaobo-Zhou

noxfile.py

@@ -69,7 +69,8 @@ def _cleanup(session: nox.Session) -> None:
     gha_temp = pathlib.Path("/home/runner/work/_temp/setup-uv-cache")
     if gha_temp.exists():
         shutil.rmtree(gha_temp, ignore_errors=True)
-        session.log(f"Cleaned GitHub Actions uv temp cache at {gha_temp}")
+    gha_temp.mkdir(parents=True, exist_ok=True)
+    session.log(f"Stubbed GitHub Actions cache folder at {gha_temp}")
 
 
 def _run_tests(