mention C++17 #107

Job	Run time
build (ubuntu-22.04, Debug, static, 5.15)	3m 53s
build (ubuntu-22.04, Debug, static, 6.5.*)	5m 29s
build (ubuntu-22.04, Debug, shared, 5.15)	3m 38s
build (ubuntu-22.04, Debug, shared, 6.5.*)	4m 57s
build (ubuntu-22.04, Release, static, 5.15)	1m 6s
build (ubuntu-22.04, Release, static, 6.5.*)	1m 46s
build (ubuntu-22.04, Release, shared, 5.15)	1m 42s
build (ubuntu-22.04, Release, shared, 6.5.*)	1m 22s
build (windows-2022, Debug, static, 5.15)	15m 13s
build (windows-2022, Debug, static, 6.5.*)	17m 31s
build (windows-2022, Debug, shared, 5.15)	15m 26s
build (windows-2022, Debug, shared, 6.5.*)	16m 58s
build (windows-2022, Release, static, 5.15)	1m 42s
build (windows-2022, Release, static, 6.5.*)	3m 10s
build (windows-2022, Release, shared, 5.15)	1m 52s
build (windows-2022, Release, shared, 6.5.*)	2m 13s
build (macos-12, Debug, static, 5.15)	3m 4s
build (macos-12, Debug, static, 6.5.*)	3m 37s
build (macos-12, Debug, shared, 5.15)	2m 43s
build (macos-12, Debug, shared, 6.5.*)	4m 53s
build (macos-12, Release, static, 5.15)	2m 3s
build (macos-12, Release, static, 6.5.*)	1m 40s
build (macos-12, Release, shared, 5.15)	1m 33s
build (macos-12, Release, shared, 6.5.*)	2m 31s
	2h 0m 2s

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