added Python 3.13 to package setup file, as well as tox & CI configs
removed Python 3.8 from those same files
I did not switch default tox Python version from 3.12 yet since both 3.12 & 3.13 have the same official status but 3.13 was only recently released. (The tests with -e py313 seem to be running alright locally though.)
resolves #780:
tox
& CI configsI did not switch default
tox
Python version from 3.12 yet since both 3.12 & 3.13 have the same official status but 3.13 was only recently released. (The tests with-e py313
seem to be running alright locally though.)