Bump @testing-library/react from 12.1.2 to 12.1.5 in /ui (#2109)

Bumps [@testing-library/react](https://github.com/testing-library/react-testing-library) from 12.1.2 to 12.1.5.
- [Release notes](https://github.com/testing-library/react-testing-library/releases)
- [Changelog](https://github.com/testing-library/react-testing-library/blob/main/CHANGELOG.md)
- [Commits](https://github.com/testing-library/react-testing-library/compare/v12.1.2...v12.1.5)

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

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

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

ui/package.json

@@ -39,7 +39,7 @@
   },
   "devDependencies": {
     "@testing-library/jest-dom": "^5.16.5",
-    "@testing-library/react": "^12.1.2",
+    "@testing-library/react": "^12.1.5",
     "@testing-library/react-hooks": "^7.0.2",
     "@testing-library/user-event": "^13.5.0",
     "css-mediaquery": "^0.1.2",