Jien Cao

When testing PR-123, we found that the setup-python@v2 had stopped working correctly for macos-latest configurations, as shown in https://github.com/bdaiinstitute/spatialmath-python/actions/runs/8958982641/job/24603844190?pr=123 It was further discovered that python3.7 is also no longer supported...

Implements changes from discussions under [Issue 122](https://github.com/bdaiinstitute/spatialmath-python/issues/122).