Bump actions/setup-python from 3 to 5 #33

Job	Run time
mypy	3m 35s
py3.12 \| macos \| integration tests	14m 25s
py3.12 \| macos \| unit tests	10m 15s
py3.12 \| ubuntu \| unit tests	12m 46s
py3.12 \| ubuntu \| integration tests	21m 25s
py3.12 \| windows \| integration tests	32m 44s
py3.12 \| windows \| unit tests	19m 45s
py3.10 \| ubuntu \| unit tests	12m 1s
py3.11 \| ubuntu \| unit tests	11m 57s
	2h 18m 53s

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