A minor update that includes some code cleanup (flake8 and black), removing some unneeded dependences, etc.
What's Changed
* Add a PHYSLITE file to testing by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/210
* CI/Tests failing by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/215
* fix: Remove deleted codecov Python package dependency by matthewfeickert in https://github.com/iris-hep/func_adl_xAOD/pull/213
* Move to 3.12 by gordonwatts in https://github.com/iris-hep/func_adl_xAOD/pull/216
**Full Changelog**: https://github.com/iris-hep/func_adl_xAOD/compare/2.1.1...2.1.2