build(deps): bump vtk from 9.5.0 to 9.5.1 in /requirements

Bumps [vtk](https://vtk.org) from 9.5.0 to 9.5.1.

---
updated-dependencies:
- dependency-name: vtk
  dependency-version: 9.5.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements/requirements_doc.txt

@@ -9,4 +9,4 @@ sphinx-copybutton==0.5.2
 sphinx-gallery==0.19.0
 sphinx-notfound-page==1.1.0
 trame==3.11.0
-vtk==9.5.0
+vtk==9.5.1