build

CI: improve nightly blktests #3287

Job	Run time
muon minimal static	32s
fallback shared libraries	1m 23s
build libnvme and nvme-cli separately	44s
cross (s390x)	45s
make static	43s
cross (armhf)	54s
default (gcc, release)	57s
default (clang, debug)	50s
default (gcc, debug)	43s
default (clang, release)	54s
cross (ppc64le)	43s
	9m 8s

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