relax h5py to >=3.8.0, to make it easier to package in spack

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.23%. Comparing base (e45c918) to head (b32a679).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #177 +/- ## ======================================= Coverage 91.23% 91.23% ======================================= Files 95 95 Lines 5626 5626 ======================================= Hits 5133 5133 Misses 493 493 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.