Fix jdftx.outputs usage of 3.11+ only syntax

[DanielYang59]

Summary

Fix the following 3.11+ only syntax:

Changed in version 3.11: Expressions in an expression list may be starred. See PEP 646.

E     File "/home/yang/pmg/src/pymatgen/io/jdftx/outputs.py", line 328
E       projections[spins[i]][:, :, *u_to_oa_map[u]] += proj_sjku[i, :, :, u]
E                                   ^
E   SyntaxError: invalid syntax

cc @benrich37

[benrich37]

Sorry about this! I was under the impression when I wrote this that pymatgen was for python 3.12+, thank you for fixing this!

[DanielYang59]

no problem at all,

pymatgen/pyproject.toml

Lines 47 to 51 in 12011a1

	"Programming Language :: Python :: 3",
	"Programming Language :: Python :: 3.10",
	"Programming Language :: Python :: 3.11",
	"Programming Language :: Python :: 3.12",
	"Programming Language :: Python :: 3.13",

Also noticed we don't test 3.10 and that's the reason this was not caught, maybe we should consider moving one of the windows configs to 3.10