build(deps): bump mobx-utils from 6.0.5 to 6.0.6 in /website

Bumps [mobx-utils](https://github.com/mobxjs/mobx-utils) from 6.0.5 to 6.0.6.
- [Release notes](https://github.com/mobxjs/mobx-utils/releases)
- [Changelog](https://github.com/mobxjs/mobx-utils/blob/master/CHANGELOG.md)
- [Commits](mobxjs/mobx-utils@6.0.5...6.0.6)

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

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

website/package.json

@@ -16,7 +16,7 @@
     "google-protobuf": "^4.0.0-rc.1",
     "mobx": "^6.8.0",
     "mobx-react": "^7.6.0",
-    "mobx-utils": "^6.0.5",
+    "mobx-utils": "^6.0.6",
     "numeral": "^2.0.6",
     "qrcode": "^1.5.1",
     "react": "^17.0.2",