Upgrade setup-miniconda to v3 due to deprecation (#464) #2426

Job	Run time
coverage	1m 44s
pre-commit	56s
test (ubuntu-latest, 3.12)	1m 24s
pin	3m 1s
test (macos-latest, 3.12)	2m 30s
benchmarks	1m 38s
test (windows-latest, 3.12)	4m 28s
docs	1m 47s
examples	3m 26s
tutorials_list	3s
tutorials (tutorials/arm_repertoire.ipynb)	1m 24s
tutorials (tutorials/cma_mae.ipynb)	9m 8s
tutorials (tutorials/features/example.ipynb)	46s
tutorials (tutorials/fooling_mnist.ipynb)	3m 21s
tutorials (tutorials/lsi_mnist.ipynb)	8m 9s
tutorials (tutorials/lunar_lander.ipynb)	9m 16s
tutorials (tutorials/scalable_cma_mae.ipynb)	4m 46s
deploy	0s
	57m 47s

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