build(deps): bump mobx from 6.13.0 to 6.13.1 in /docs (#3935)

Bumps [mobx](https://github.com/mobxjs/mobx) from 6.13.0 to 6.13.1.
- [Release notes](https://github.com/mobxjs/mobx/releases)
- [Commits](https://github.com/mobxjs/mobx/compare/mobx@6.13.0...mobx@6.13.1)

---
updated-dependencies:
- dependency-name: mobx
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

docs/package.json

@@ -20,7 +20,7 @@
     "@mdx-js/react": "^3.0.1",
     "clsx": "^2.1.1",
     "docusaurus-protobuffet": "^0.3.3",
-    "mobx": "^6.13.0",
+    "mobx": "^6.13.1",
     "prism-react-renderer": "^1.3.5",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",