fix: fix ci problem under mindsproe 2.3.1 (mindspore 2.3.1 is not available under python 3.8 and 3.7, while forward computation failed under python 3.9)

fix: fix ci problem under mindsproe 2.3.1 (mindspore 2.3.1 is not available under python 3.8 and 3.7, while forward computation failed under python 3.9) #668