Bump pydata-sphinx-theme from 0.16.0 to 0.16.1 in the docs group

Bumps the docs group with 1 update: [pydata-sphinx-theme](https://github.com/pydata/pydata-sphinx-theme).


Updates `pydata-sphinx-theme` from 0.16.0 to 0.16.1
- [Release notes](https://github.com/pydata/pydata-sphinx-theme/releases)
- [Changelog](https://github.com/pydata/pydata-sphinx-theme/blob/main/RELEASE.md)
- [Commits](pydata/pydata-sphinx-theme@v0.16.0...v0.16.1)

---
updated-dependencies:
- dependency-name: pydata-sphinx-theme
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: docs
...

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

requirements-doc.txt

@@ -1,7 +1,7 @@
 jupyter_sphinx==0.5.3
 jupyterlab==4.3.1
 numpydoc==1.8.0
-pydata-sphinx-theme==0.16.0
+pydata-sphinx-theme==0.16.1
 pyvista==0.44.2
 sphinx==8.1.3
 sphinx-design==0.6.1