[batch] make rmtree async (#10427)
[batch] make rmtree async (#10427)

* [batch] make shutil.rmtree async

* fix
hail-is/hail,hail-is/hail,hail-is/hail,hail-is/hail,hail-is/hail,hail-is/hail,hail-is/hail,hail-is/hail