build

ci: pin GitHub Actions to SHA hashes of latest release versions #3803

Job	Run time
muon minimal static	42s
cross (ppc64le)	42s
cross (s390x)	47s
nvme-cli (gcc, debug)	46s
nvme-cli (gcc, release)	56s
libnvme (gcc, debug)	43s
nvme-cli (clang, debug)	56s
nvme-cli (clang, release)	57s
libnvme (gcc, release)	49s
cross (armhf)	45s
make static	40s
libnvme (clang, release)	44s
build libnvme and nvme-cli separately	40s
libnvme (clang, debug)	41s
fallback shared libraries	-1s
	10m 47s

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