C++

windows server 2019 isn't supported on github actions anymore #1438

Job	Run time
ubuntu-latest-gcc-11-blas	16m 49s
ubuntu-22-04-gcc-default-cmake-3-10-ffmpeg5	26m 27s
ubuntu-latest-clang-default-avx	16m 29s
ubuntu-22-04-ffmpeg7	1m 28s
windows-latest	27m 43s
	1h 28m 56s

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