Bump h5py from 3.15.1 to 3.16.0 (#822)

Bumps [h5py](https://github.com/h5py/h5py) from 3.15.1 to 3.16.0.
- [Release notes](https://github.com/h5py/h5py/releases)
- [Changelog](https://github.com/h5py/h5py/blob/master/docs/release_guide.rst)
- [Commits](h5py/h5py@3.15.1...3.16.0)

---
updated-dependencies:
- dependency-name: h5py
  dependency-version: 3.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

doc/requirements.txt

@@ -4,7 +4,7 @@ Pillow==12.2.0
 Sphinx==9.0.4
 furo==2025.12.19
 ipython==9.12.0
-h5py==3.15.1
+h5py==3.16.0
 h5netcdf==1.8.1
 xarray==2026.2.0
 matplotlib==3.10.8