build(deps): bump sphinx-gallery from 0.16.0 to 0.17.0 in /requirements

Bumps [sphinx-gallery](https://github.com/sphinx-gallery/sphinx-gallery) from 0.16.0 to 0.17.0.
- [Release notes](https://github.com/sphinx-gallery/sphinx-gallery/releases)
- [Changelog](https://github.com/sphinx-gallery/sphinx-gallery/blob/master/.github_changelog_generator)
- [Commits](sphinx-gallery/sphinx-gallery@v0.16.0...v0.17.0)

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

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

requirements/requirements_doc.txt

@@ -6,7 +6,7 @@ notfound==1.0.2
 pypandoc==1.13
 pyvista==0.43.9
 sphinx-copybutton==0.5.2
-sphinx-gallery==0.16.0
+sphinx-gallery==0.17.0
 sphinx-notfound-page==1.0.2
 trame==3.6.3
 vtk==9.3.1