Update package.py (#18426)
Update package.py (#18426)

Correct boost version to match flecsi
iulian787/spack,iulian787/spack,LLNL/spack,LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,LLNL/spack,LLNL/spack,iulian787/spack