Bump mobx in /ui/ui-docs in the ui-docs-dependencies group (#5139)

Bumps the ui-docs-dependencies group in /ui/ui-docs with 1 update: [mobx](https://github.com/mobxjs/mobx).


Updates `mobx` from 6.13.1 to 6.13.2
- [Release notes](https://github.com/mobxjs/mobx/releases)
- [Commits](https://github.com/mobxjs/mobx/compare/mobx@6.13.1...mobx@6.13.2)

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

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

Author: dependabot[bot]

ui/ui-docs/package-lock.json

@@ -29,7 +29,7 @@
   "dependencies": {
     "react": "18.3.1",
     "react-dom": "18.3.1",
-    "mobx": "6.13.1",
+    "mobx": "6.13.2",
     "styled-components": "6.1.13",
     "core-js": "3.38.1",
     "redoc": "2.1.5"