Bump actions/download-artifact from 2 to 4.1.7 in /.github/workflows #40

Job	Run time
Build Windows Shared Libraries (amd64)	34s
Build Windows Shared Libraries (amd64_x86)	41s
Build Windows Shared Libraries (amd64_arm)	39s
Build Linux Cross Shared Library (web-wasm)	44s
Test (linux-gcc: ubuntu-20.04)	6s
Build Windows Shared Libraries (amd64_arm64)	54s
Build Linux Cross Shared Library (linux-x64)	25s
Test (windows-gcc: windows-2019)	33s
Build Linux Cross Shared Library (linux-x86)	26s
Test (windows-cl: windows-2019)	38s
Build Linux Cross Shared Library (linux-arm64)	27s
Test (macos-gcc: macos-10.15)	0s
Build Linux Cross Shared Library (linux-arm64-musl)	26s
Build Linux Cross Shared Library (linux-armv5)	31s
Build Linux Cross Shared Library (linux-armv5-musl)	30s
Build Linux Cross Shared Library (linux-armv6)	27s
Build Linux Cross Shared Library (linux-armv6-musl)	26s
Build Linux Cross Shared Library (linux-armv7)	30s
Build Linux Cross Shared Library (linux-armv7a)	31s
Build Linux Cross Shared Library (linux-armv7l-musl)	25s
Build Linux Cross Shared Library (linux-s390x)	31s
Build Linux Cross Shared Library (linux-ppc64le)	26s
Build Linux Cross Shared Library (mingw-windows-static-x64)	49s
Build Linux Cross Shared Library (mingw-windows-static-x64-posix)	1m 4s
Build Linux Cross Shared Library (mingw-windows-static-x86)	46s
Build Linux Cross Shared Library (mingw-windows-shared-x64)	53s
Build Linux Cross Shared Library (mingw-windows-shared-x64-posix)	1m 18s
Build Linux Cross Shared Library (mingw-windows-shared-x86)	49s
Publish Release Artifacts to GitHub	0s
	16m 29s

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