Update pydata-sphinx-theme requirement from >=0.16.1 to >=0.17.1 (#240)

Updates the requirements on [pydata-sphinx-theme](https://github.com/pydata/pydata-sphinx-theme) to permit the latest version.
- [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@v0.16.1...v0.17.1)

---
updated-dependencies:
- dependency-name: pydata-sphinx-theme
  dependency-version: 0.17.1
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pyproject.toml

@@ -70,7 +70,7 @@ changelog = [
     "towncrier>=25.8.0",
 ]
 docs = [
-    "pydata-sphinx-theme>=0.16.1",
+    "pydata-sphinx-theme>=0.17.1",
     "sphinx>=8.2.3",
     "sphinx-autoapi>=3.8.0",
     "sphinx-autodoc-typehints>=3.2.0",