Support python3.13

[DanielYang59]

Summary

• Support python 3.13, to close Python 3.13 support #4284
• Remove all pybtex check after Replace pybtex with bibtexparser #4361
• Need to fix the EOS test failure on Ubuntu 3.13 (seemingly related to numerical precision but cannot recreate locally)
• Revert all platforms tested on Python 3.13 in test.yml test matrix (c9cc898)

Optional dependencies that miss Python 3.13 support:

• openff-toolkit (conda source)
• chgnet

[DanielYang59]

might close this one now as too many packages don't support python 3.13, feel free to take over this

[DanielYang59]

I'm pretty much stuck with the Windows runner failure, help needed

• Cannot recreate locally with pytest --splits 10 --group 1 --durations-path tests/files/.pytest-split-durations tests

• Cannot find much useful info, according to: Running pytest on a file importing pandas and torch.onnx leads to access violation pytest-dev/pytest#12728

  this is certain to be a bug in one (or several) other libraries.

  As there're too many dependencies in pymatgen, it's super hard to identify which "may" have caused this failure

[DanielYang59]

Would close this and open a new PR once #4361 is merged, this PR has been around for too long and I cannot remember everything here (plus most changes are related to pybtex)