MAINT: Bump the doc group with 2 updates

Bumps the doc group with 2 updates: [matplotlib](https://github.com/matplotlib/matplotlib) and [pyvista](https://github.com/pyvista/pyvista).


Updates `matplotlib` from 3.9.0 to 3.9.1
- [Release notes](https://github.com/matplotlib/matplotlib/releases)
- [Commits](matplotlib/matplotlib@v3.9.0...v3.9.1)

Updates `pyvista` from 0.43.10 to 0.44.0
- [Release notes](https://github.com/pyvista/pyvista/releases)
- [Commits](pyvista/pyvista@v0.43.10...v0.44.0)

---
updated-dependencies:
- dependency-name: matplotlib
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: doc
- dependency-name: pyvista
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: doc
...

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

Author: dependabot[bot]

pyproject.toml

@@ -60,7 +60,7 @@ doc = [
     "imageio==2.34.2",
     "jupyter_sphinx==0.5.3",
     "jupyterlab>=3.2.8",
-    "matplotlib==3.9.0",
+    "matplotlib==3.9.1",
     "numpy==2.0.0",
     "numpydoc==1.7.0",
     "pandas==2.2.2",
@@ -69,7 +69,7 @@ doc = [
     "pypandoc==1.13",
     "pytest-sphinx==0.6.3",
     "pythreejs==2.4.2",
-    "pyvista==0.43.10",
+    "pyvista==0.44.0",
     "sphinx-autobuild==2024.4.16",
     "sphinx-autodoc-typehints==2.2.2",
     "sphinx-copybutton==0.5.2",