Bump h5netcdf from 1.7.2 to 1.7.3

Bumps [h5netcdf](https://github.com/h5netcdf/h5netcdf) from 1.7.2 to 1.7.3.
- [Release notes](https://github.com/h5netcdf/h5netcdf/releases)
- [Changelog](https://github.com/h5netcdf/h5netcdf/blob/main/CHANGELOG.rst)
- [Commits](h5netcdf/h5netcdf@v1.7.2...v1.7.3)

---
updated-dependencies:
- dependency-name: h5netcdf
  dependency-version: 1.7.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -11,7 +11,7 @@ pytest-cov==7.0.0
 zarr==2.18.4
 ruff==0.8.6
 netcdf4==1.7.2
-h5netcdf==1.7.2
+h5netcdf==1.7.3
 impactlab-tools==0.6.0
 p_tqdm==1.4.2
 pyarrow==21.0.0