Update version vault URL in util.lua #36

Job	Run time
test-on-windows (windows-latest, 3.12.2)	2m 2s
test-on-windows (windows-latest, 3.12.2, https://mirrors.huaweicloud.com/python/)	1m 42s
test-on-linux (ubuntu-latest, 3.12.2, https://mirrors.huaweicloud.com/python/)	2m 4s
test-on-linux (ubuntu-latest, 3.12.2)	1m 53s
	7m 41s

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