build(deps): bump pydata-sphinx-theme from 0.16.0 to 0.16.1 in /_package

Bumps [pydata-sphinx-theme](https://github.com/pydata/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
...

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

_package/pyproject.toml

@@ -42,7 +42,7 @@ doc = [
     "numpydoc==1.8.0",
     "pandas==2.2.3",
     "parse==1.20.2",
-    "pydata_sphinx_theme==0.16.0",
+    "pydata_sphinx_theme==0.16.1",
     "pypandoc==1.14",
     "pytest-sphinx==0.6.3",
     "pyyaml==6.0.2",