Add icon recipe based on spack 1.0, nvhpc 25.7, upstream libfabric, new nccl, etc.#34

msimberg wants to merge 1 commit intoC2SM:mainC2SM/software-stack-recipes:mainfrom

msimberg:icon-recipe-spack-1.0msimberg/software-stack-recipes:icon-recipe-spack-1.0Copy head branch name to clipboard