message: bump spack sha to include python external fix
diff: "package_final_phase": "initconfig",
  "package_source_dir": "../..",
  "spack_url": "https://github.com/spack/spack.git",
  -"spack_commit": "d71d0732d6a0486a5d6cf11d981c32e47e7182b5",
  +"spack_commit": "e9ea095bdd56a450968ee9f201d902bbf735fcb7",
  "spack_configs_path": "scripts/spack/configs",
  "spack_packages_path": "scripts/spack/packages",
  "spack_concretizer": "clingo",
  