Bump actions/checkout from 4.1.5 to 4.1.6 (#221) #483

Job	Run time
Build (ubuntu, x64, openssl, static)	2m 24s
Build (ubuntu, x64, openssl, shared)	1m 53s
Build (windows, x86, schannel, static)	3m 53s
Build (windows, x86, schannel, shared)	3m 53s
Build (windows, x86, openssl, static)	5m 8s
Build (windows, x86, openssl, shared)	5m 18s
Build (windows, x64, schannel, static)	3m 34s
Build (windows, x64, schannel, shared)	3m 47s
Build (windows, x64, openssl, static)	5m 40s
Build (windows, x64, openssl, shared)	5m 6s
	40m 36s

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