Add opt-in uv-build Python prebuilt installs #72

Job	Run time
test-on-windows (windows-latest, 3.12.2)	1m 14s
test-on-linux (ubuntu-latest, 3.12.2)	1m 54s
test-on-linux (ubuntu-latest, 3.12.2, https://mirrors.huaweicloud.com/python/)	1m 54s
test-on-windows (windows-latest, 3.12.2, https://mirrors.huaweicloud.com/python/)	1m 25s
	6m 27s

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