remove setup.py, remove license classifier, update pre-commit hooks #129

Job	Run time
checks / other-checks	38s
checks / check-style	2m 0s
wheel-build / compute-matrix	4s
conda-python-build / compute-matrix	2s
conda-python-build / 13.0.1, 3.13, amd64, rockylinux8	1m 12s
wheel-build / 13.0.1, 3.13, arm64, rockylinux8	3m 15s
conda-python-tests	-1s
wheel-tests	-1s
pr-builder	-1s
	7m 8s

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