Bump vtk from 9.2.6 to 9.4.1

Bumps [vtk](https://vtk.org) from 9.2.6 to 9.4.1.

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

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

Author: dependabot[bot]

requirements.txt

@@ -26,7 +26,7 @@ scanf==1.5.2
 seaborn==0.13.2
 structdbrest==0.0.1
 temmeta==0.0.6
-vtk==9.2.6
+vtk==9.4.1
 pytorch==2.1.2
 tensorflow==2.17.0
 llama-index==0.12.5