build: bump panel from 1.4.2 to 1.4.3 in the docs-deps group

Bumps the docs-deps group with 1 update: [panel](https://github.com/holoviz/panel).


Updates `panel` from 1.4.2 to 1.4.3
- [Release notes](https://github.com/holoviz/panel/releases)
- [Changelog](https://github.com/holoviz/panel/blob/main/CHANGELOG.md)
- [Commits](holoviz/panel@v1.4.2...v1.4.3)

---
updated-dependencies:
- dependency-name: panel
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: docs-deps
...

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

Author: dependabot[bot]

pyproject.toml

@@ -85,7 +85,7 @@ doc = [
     "nbsphinx==0.9.4",
     "notebook==7.2.0",
     "numpydoc==1.7.0",
-    "panel==1.4.2",
+    "panel==1.4.3",
     "pyvista[jupyter]==0.43.8",
     "requests==2.32.2",
     "sphinx==7.3.7",