build(deps): bump pydata-sphinx-theme from 0.15.4 to 0.16.0

Bumps [pydata-sphinx-theme](https://github.com/pydata/pydata-sphinx-theme) from 0.15.4 to 0.16.0.
- [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@v0.15.4...v0.16.0)

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

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

Author: dependabot[bot]

docs/requirements-docs.txt

@@ -235,7 +235,6 @@ packaging==24.1
     #   jupyterlab
     #   jupyterlab-server
     #   nbconvert
-    #   pydata-sphinx-theme
     #   sphinx
 pandocfilters==1.5.1
     # via nbconvert
@@ -261,7 +260,7 @@ pure-eval==0.2.3
     # via stack-data
 pycparser==2.22
     # via cffi
-pydata-sphinx-theme==0.15.4
+pydata-sphinx-theme==0.16.0
     # via -r docs/requirements-docs.in
 pygments==2.18.0
     # via