chore: bump webpack from 4.42.0 to 5.94.0 in /docs

Bumps [webpack](https://github.com/webpack/webpack) from 4.42.0 to 5.94.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v4.42.0...v5.94.0)

---
updated-dependencies:
- dependency-name: webpack
  dependency-type: direct:production
...

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

docs/package.json

@@ -67,7 +67,7 @@
     "ts-pnp": "1.1.6",
     "typescript": "~3.7.2",
     "url-loader": "2.3.0",
-    "webpack": "4.42.0",
+    "webpack": "5.94.0",
     "webpack-dev-server": "3.10.3",
     "webpack-manifest-plugin": "2.2.0",
     "workbox-webpack-plugin": "4.3.1"