GHA windows build test doesn't work with python 3.8

Currently, build test on windows doesn't support python 3.8, it throws below exception
```
Run python3 -m venv ./venv
Error: [WinError [2](https://github.com/amazon-ion/ion-python/actions/runs/6963159507/job/18948248057#step:5:2)] The system cannot find the file specified
Error: Process completed with exit code 1.
```

but it works for pypy and python 3.8+