run linting and docs in python 3.12

shed which runs as part of linting no longer supports python 3.8

Author: ghazi-git

tox.ini

@@ -16,11 +16,11 @@ envlist =
 
 [gh-actions]
 python =
-    3.8: py38, lint, docs
+    3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311
-    3.12: py312
+    3.12: py312, lint, docs
 
 [testenv]
 deps =
@@ -48,7 +48,6 @@ commands = pre-commit run --all-files --show-diff-on-failure
 
 [testenv:docs]
 extras = doc
-basepython = python3.8
 commands = sphinx-build -d "{toxworkdir}/docs_doctree" docs "{toxworkdir}/docs_out" --color -W -bhtml {posargs}
            python -c 'import pathlib; print("documentation available under file://\{0\}".format(pathlib.Path(r"{toxworkdir}") / "docs_out" / "index.html"))'