Bump h5py from 3.8.0 to 3.9.0 (#936)

Bumps [h5py](https://github.com/h5py/h5py) from 3.8.0 to 3.9.0.
- [Release notes](https://github.com/h5py/h5py/releases)
- [Changelog](https://github.com/h5py/h5py/blob/master/docs/release_guide.rst)
- [Commits](h5py/h5py@3.8.0...3.9.0)

---
updated-dependencies:
- dependency-name: h5py
  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>

requirements/requirements-test-optional.txt

@@ -1,4 +1,4 @@
-h5py==3.8.0; implementation_name=='cpython'
+h5py==3.9.0; implementation_name=='cpython'
 numpy==1.24.3
 pandas==2.0.2; implementation_name=='cpython'
 ruamel.yaml==0.17.31