Fix/action checkout (#32) #45

Job	Run time
build (ubuntu-latest, Release, 11)	11s
build (ubuntu-latest, Release, 20)	15s
build (ubuntu-latest, Debug, 11)	9s
build (ubuntu-latest, Debug, 20)	15s
build (ubuntu-20.04, Release, 11)	12s
build (ubuntu-20.04, Release, 20)	14s
build (ubuntu-20.04, Debug, 11)	10s
build (ubuntu-20.04, Debug, 20)	12s
build (macos-latest, Release, 11)	17s
build (macos-latest, Release, 20)	16s
build (macos-latest, Debug, 11)	18s
build (macos-latest, Debug, 20)	17s
build (macos-13, Release, 11)	38s
build (macos-13, Release, 20)	33s
build (macos-13, Debug, 11)	31s
build (macos-13, Debug, 20)	33s
build (windows-latest, Release, 11)	39s
build (windows-latest, Release, 20)	1m 16s
build (windows-latest, Debug, 11)	1m 3s
build (windows-latest, Debug, 20)	38s
build (windows-2019, Release, 11)	1m 31s
build (windows-2019, Release, 20)	1m 25s
build (windows-2019, Debug, 11)	1m 30s
build (windows-2019, Debug, 20)	1m 24s
	14m 27s

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