Do not use linux prebuilt centos7_conda20.11_py37
I made a mistake in previous MR so the centos7_conda20.11_py37 artifact is wrong. It is actually the same as centos7_conda20.11_py38. Will be fixed later.
I made a mistake in previous MR so the centos7_conda20.11_py37 artifact is wrong. It is actually the same as centos7_conda20.11_py38. Will be fixed later.