`build-ci v3`: Update Infra For `spack v1` (ESM1.5)#70

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CodeGat wants to merge 2 commits intoaccess-esm1.5from

infra-update-v3-esm1.5

Commits on Nov 17, 2025

infra: update to v3
CodeGat
committed

Commits on Dec 4, 2025

[no ci] infra: update spack to v1.1
CodeGat
committed