pip prod(deps): update h5netcdf requirement from >=1.4.0 to >=1.8.1

[dependabot]

Updates the requirements on h5netcdf to permit the latest version.

Release notes

Sourced from h5netcdf's releases.

release 1.8.1

What's Changed

• fix backend dependencies by @​kmuehlbauer in h5netcdf/h5netcdf#311

Full Changelog: h5netcdf/h5netcdf@v1.8.0...v1.8.1

Changelog

Sourced from h5netcdf's changelog.

Change Log

Development Version (unreleased):

• Fix CI issues with xarray nightly tests (add pytz dependency) and h5pyd tests (pin setuptools=81) (:issue:312, :pull:313) by Kai Mühlbauer <https://github.com/kmuehlbauer>_
• FIX CI wrt setup-micromamba v3, update ros3 tests to work with HDF v2 (:pull:316) by Kai Mühlbauer <https://github.com/kmuehlbauer>_

Version 1.8.1 (January 23rd, 2026):

• Add numpy to default dependencies, update install section to highlight backend installation, update error message on missing backend (:issue:310, :pull:311) by Kai Mühlbauer <https://github.com/kmuehlbauer>_

Version 1.8.0 (January 16st, 2026):

• Fix ros3 test (:issue:295, :pull:296). By Ezequiel Cimadevilla Alvarez <https://github.com/zequihg50>_
• Update pre-commit. By Kai Mühlbauer <https://github.com/kmuehlbauer>_
• Fix h5py3 hdf5 1.10 CI run (:pull:303). By Kai Mühlbauer <https://github.com/kmuehlbauer>_
• Support pyfive as an alternative backend ({pull}273). By Bryan Lawrence <https://github.com/bnlawrence>, David Hassell <https://github.com/davidhassell>, Valeriu Predoi <https://github.com/valeriupredoi>, Kai Mühlbauer <https://github.com/kmuehlbauer> and Stephan Hoyer <https://github.com/shoyer>_
• Add support for filters() for Variables to match netCDF4 python API. By Mark Harfouche <https://github.com/hmaarrfk>_.

Version 1.7.3 (October 21st, 2025):

• Fix indexing with empty arrays and lists (:pull:297). By Kai Mühlbauer <https://github.com/kmuehlbauer>_

Version 1.7.2 (October 17th, 2025):

• Fix regression where format was requested from group instance instead of root. Simplify logic to check and raise CompatibilityError. (:issue:293, :pull:294). By Kai Mühlbauer <https://github.com/kmuehlbauer>

Version 1.7.1 (October 16th, 2025):

• Fix regression where attributes with list of strings were written with h5py low-level API instead of high-level API (:issue:291, :pull:292). By Kai Mühlbauer <https://github.com/kmuehlbauer>_

Version 1.7.0 (October 15th, 2025):

• Fix unintentional changes in test suite (:pull:277). By Kai Mühlbauer <https://github.com/kmuehlbauer>_
• Create ENUM with low level API to keep order-by-value, add h5dump based tests (:pull:285). By Kai Mühlbauer <https://github.com/kmuehlbauer>_ and David Huard <https://github.com/huard>_
• Fix interoperability issues between netcdf4/h5netcdf, namely resizing variables using partial slices,

... (truncated)

Commits

• 7a2bdde REL: 1.8.1
• 4e44053 fix backend dependencies (#311)
• e20db9e REL: 1.8.0 (#308)
• a57d912 Add filters() method to variables (#307)
• 86a13c6 Support Pyfive as alternative backend, fix testsuite (#279)
• eb8dc7b Bump actions/upload-artifact from 5 to 6 (#306)
• ba9e4b6 Bump actions/checkout from 5 to 6 (#305)
• c615b30 Fix h5py3 hdf5 1.10 CI run (#303)
• 1b5ff20 Bump actions/upload-artifact from 4 to 5 (#300)
• 2ba5d7e update pre-commit
• Additional commits viewable in compare view

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