Bump actions/upload-artifact from 4.4.0 to 4.6.0 #6

Job	Run time
mingw (mingw64)	3m 43s
mingw (ucrt64)	4m 25s
build (windows-2019, Win32, v142, 17, Debug)	1m 56s
build (windows-2019, Win32, v142, 17, Release)	2m 44s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	1m 16s
build (windows-2019, Win32, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	2m 23s
build (windows-2019, x64, v141, 14, Debug)	1m 19s
build (windows-2019, x64, v141, 14, Release)	2m 28s
build (windows-2019, x64, v141, 17, Debug)	1m 48s
build (windows-2019, x64, v141, 17, Release)	2m 23s
build (windows-2019, x64, v142, 17, Debug)	2m 5s
build (windows-2019, x64, v142, 17, Release)	3m 13s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Debug)	1m 33s
build (windows-2019, x64, v142, 17, -DBUILD_SHARED_LIBS=ON, Release)	2m 23s
build (windows-2019, x64, v142, 20, Debug)	1m 34s
build (windows-2019, x64, v142, 20, Release)	3m 4s
build (windows-2022, x64, v143, Debug, 20)	2m 23s
	40m 40s

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