Bump @jupyterlab/apputils from 4.6.5 to 4.6.6 in /js

Bumps [@jupyterlab/apputils](https://github.com/jupyterlab/jupyterlab) from 4.6.5 to 4.6.6.
- [Release notes](https://github.com/jupyterlab/jupyterlab/releases)
- [Changelog](https://github.com/jupyterlab/jupyterlab/blob/main/RELEASE.md)
- [Commits](https://github.com/jupyterlab/jupyterlab/compare/@jupyterlab/apputils@4.6.5...@jupyterlab/apputils@4.6.6)

---
updated-dependencies:
- dependency-name: "@jupyterlab/apputils"
  dependency-version: 4.6.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

js/package.json

@@ -44,7 +44,7 @@
   },
   "dependencies": {
     "@jupyterlab/application": "^4.5.1",
-    "@jupyterlab/apputils": "^4.6.5",
+    "@jupyterlab/apputils": "^4.6.6",
     "@jupyterlab/notebook": "^4.5.1",
     "@jupyterlab/services": "^7.5.5",
     "@lumino/disposable": "^2.1.5"