Need to resolve dependency issues with asteval

Possibly preferable to remove dependency on it altogether. @pjung was also having issue with it for xml2optr I believe. Riley was just having issues with it when trying to install accpy on linux mint with python 3.12. He was getting a 'configparser has no attribute safeconfigparser' error from versioneer which was being used by setuptools/asteval. This was with the requirement asteval==0.9.11 in setup.py. For now I (Spencer) loosened the asteval requirement to asteval>=0.9.11 and this has things working for Riley. However Paul had previously pinned it most likely to prevent errors in deploys on older python versions. So will need to be sorted out.

See https://github.com/pygeos/pygeos/issues/463 for some more info on this.