build(deps-dev): bump @testing-library/user-event

Bumps [@testing-library/user-event](https://github.com/testing-library/user-event) from 14.6.4 to 14.6.6.
- [Release notes](https://github.com/testing-library/user-event/releases)
- [Changelog](https://github.com/testing-library/user-event/blob/main/CHANGELOG.md)
- [Commits](testing-library/user-event@v14.6.4...v14.6.6)

---
updated-dependencies:
- dependency-name: "@testing-library/user-event"
  dependency-version: 14.6.6
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build/frontend-legacy/package-lock.json

@@ -111,7 +111,7 @@
     "@nextcloud/webpack-vue-config": "^7.0.4",
     "@pinia/testing": "^0.1.7",
     "@testing-library/jest-dom": "^6.6.4",
-    "@testing-library/user-event": "^14.6.4",
+    "@testing-library/user-event": "^14.6.6",
     "@testing-library/vue": "^5.8.3",
     "@types/throttle-debounce": "^5.0.2",
     "@vitejs/plugin-vue2": "^2.3.4",