upgrade to Python 3.13 #250

Job	Run time
build (macos-13, darwin, amd64)	3m 22s
build (macos-13-xlarge, darwin, arm64)	58s
build (ubuntu-22.04-arm, linux, arm64)	3m 21s
build (ubuntu-22.04, linux, amd64)	3m 34s
build (windows-2022, windows, amd64)	3m 9s
release	0s
	14m 24s

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