Bump jupyterlite-pyodide-kernel from 0.4.2 to 0.4.3 in the actions group (#46)

Bumps the actions group with 1 update: [jupyterlite-pyodide-kernel](https://github.com/jupyterlite/pyodide-kernel).


Updates `jupyterlite-pyodide-kernel` from 0.4.2 to 0.4.3
- [Release notes](https://github.com/jupyterlite/pyodide-kernel/releases)
- [Changelog](https://github.com/jupyterlite/pyodide-kernel/blob/main/CHANGELOG.md)
- [Commits](jupyterlite/pyodide-kernel@v0.4.2...v0.4.3)

---
updated-dependencies:
- dependency-name: jupyterlite-pyodide-kernel
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

demo/requirements.txt

@@ -4,7 +4,7 @@ jupyterlab~=4.2.5
 notebook~=7.2.2
 
 # Python kernel (optional)
-jupyterlite-pyodide-kernel==0.4.2
+jupyterlite-pyodide-kernel==0.4.3
 
 # Language support (optional)
 jupyterlab-language-pack-fr-FR