Bump webpack from 5.88.2 to 5.94.0 (#67)

* Bump webpack from 5.88.2 to 5.94.0

Bumps [webpack](https://github.com/webpack/webpack) from 5.88.2 to 5.94.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.88.2...v5.94.0)

---
updated-dependencies:
- dependency-name: webpack
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update yarn lock

* Use older sphinx version

* Restore theme

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Isabel Paredes <isabel.paredes@quantstack.net>

docs/requirements.txt

@@ -1,5 +1,5 @@
 myst_parser
 jupyterlite-sphinx
-sphinx
+sphinx<7
 renku-sphinx-theme
 jupyterlab-night