Migrate to NVKS for amd64 CI runners #1123

Job	Run time
checks / check-style	1m 47s
checks / other-checks	32s
conda-cpp-build / compute-matrix	2s
conda-cpp-build / 11.8.0, 3.10, amd64, rockylinux8	3m 40s
conda-cpp-build / 12.8.0, 3.10, amd64, rockylinux8	3m 5s
conda-cpp-build / 11.8.0, 3.10, arm64, rockylinux8	3m 13s
conda-cpp-build / 12.8.0, 3.10, arm64, rockylinux8	2m 52s
conda-cpp-tests / compute-matrix	1s
docs-build / build	1m 14s
conda-cpp-tests / 11.8.0, 3.10, amd64, rockylinux8, l4, earliest-driver, oldest-deps	15m 31s
conda-cpp-tests / 12.8.0, 3.12, amd64, ubuntu24.04, l4, latest-driver, latest-deps	1m 10s
conda-cpp-tests / 12.0.1, 3.11, arm64, ubuntu20.04, a100, latest-driver, latest-deps	13m 54s
pr-builder	0s
	47m 1s

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