message: bring spack commit back to develop
diff: "package_final_phase": "initconfig",
  "package_source_dir": "../..",
  "spack_url": "https://github.com/spack/spack.git",
  -"spack_commit": "e9ea095bdd56a450968ee9f201d902bbf735fcb7",
  +"spack_commit": "bb1cd430c0d6f8bebfb655c65244a25bcc325d8d",
  "spack_configs_path": "scripts/spack/configs",
  "spack_packages_path": "scripts/spack/packages",
  "spack_concretizer": "clingo",
  