build

build: move pyproject.toml to root dir #3574

Job	Run time
make static	43s
nvme-cli (clang, debug)	51s
nvme-cli (gcc, debug)	48s
nvme-cli (gcc, release)	51s
libnvme (clang, release)	50s
libnvme (gcc, release)	41s
cross (armhf)	47s
build libnvme and nvme-cli separately	46s
nvme-cli (clang, release)	58s
cross (s390x)	47s
muon minimal static	35s
libnvme (gcc, debug)	44s
libnvme (clang, debug)	48s
cross (ppc64le)	45s
fallback shared libraries	0s
	10m 54s

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