Bump @testing-library/react from 11.2.5 to 11.2.6 in /ui

Bumps [@testing-library/react](https://github.com/testing-library/react-testing-library) from 11.2.5 to 11.2.6.
- [Release notes](https://github.com/testing-library/react-testing-library/releases)
- [Changelog](https://github.com/testing-library/react-testing-library/blob/master/CHANGELOG.md)
- [Commits](https://github.com/testing-library/react-testing-library/compare/v11.2.5...v11.2.6)

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

ui/package.json

@@ -29,7 +29,7 @@
   },
   "devDependencies": {
     "@testing-library/jest-dom": "^5.11.9",
-    "@testing-library/react": "^11.2.5",
+    "@testing-library/react": "^11.2.6",
     "@testing-library/react-hooks": "^5.1.0",
     "@testing-library/user-event": "^13.0.7",
     "css-mediaquery": "^0.1.2",