Bump actions/checkout from 4.2.0 to 4.2.1 (#533) #204

Job	Run time
build (windows-2019, x64-Debug, amd64)	2m 2s
build (windows-2019, x64-Release, amd64)	2m 11s
build (windows-2022, x64-Debug, amd64)	4m 12s
build (windows-2022, x64-Release, amd64)	4m 3s
build (windows-2019, x86-Debug, amd64_x86)	1m 13s
build (windows-2019, x86-Release, amd64_x86)	1m 39s
build (windows-2022, x86-Debug, amd64_x86)	4m 29s
build (windows-2022, x86-Release, amd64_x86)	3m 8s
build (windows-2022, x64-Debug-Clang, amd64)	3m 35s
build (windows-2022, x64-Release-Clang, amd64)	3m 16s
build (windows-2022, x86-Debug-Clang, amd64_x86)	1m 48s
build (windows-2022, x86-Release-Clang, amd64_x86)	4m 32s
build (windows-2022, arm64-Debug, amd64_arm64)	3m 15s
build (windows-2022, arm64-Release, amd64_arm64)	3m 22s
build (windows-2022, arm64ec-Debug, amd64_arm64)	2m 44s
build (windows-2022, arm64ec-Release, amd64_arm64)	3m 19s
	48m 48s

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