Update common/packages.yaml

[AlexanderRichert-NOAA]

For the 1.8.0 release, I think it would be a good idea to run the check_package_config utility on a couple machines and go through the output to reconcile the versions/variants in there against what actually gets concretized. For example, in testing #1109, concretizing unified-dev led to py-h5py@3.11.0 being spec'd in spite of 3.7.0 being preferred in common/packages.yaml. In those sorts of situations, we should either require the older version if needed, or just move to the/a newer version.

Some mismatches:

• py-h5py version
• proj version
• scotch metis variant (see https://github.com/spack/spack/issues/44676)

[climbfuji]

I think we should (1) remove version and variant requirements when we don't really need them, and (2) require the rest via require to make sure they are being used.