chore(deps-dev): bump webpack in /site/docs/content

Bumps [webpack](https://github.com/webpack/webpack) from 5.88.2 to 5.90.1.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](webpack/webpack@v5.88.2...v5.90.1)

---
updated-dependencies:
- dependency-name: webpack
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

site/docs/content/package.json

@@ -11,6 +11,6 @@
   "devDependencies": {
     "@mdx-js/loader": "3.0.0",
     "@mdx-js/esbuild": "2.3.0",
-    "webpack": "5.88.2"
+    "webpack": "5.90.1"
   }
 }