Bump the testing group with 2 updates

Bumps the testing group with 2 updates: [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) and [@testing-library/react](https://github.com/testing-library/react-testing-library).


Updates `@testing-library/jest-dom` from 6.3.0 to 6.4.1
- [Release notes](https://github.com/testing-library/jest-dom/releases)
- [Changelog](https://github.com/testing-library/jest-dom/blob/main/CHANGELOG.md)
- [Commits](https://github.com/testing-library/jest-dom/compare/v6.3.0...v6.4.1)

Updates `@testing-library/react` from 14.1.2 to 14.2.1
- [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/v14.1.2...v14.2.1)

---
updated-dependencies:
- dependency-name: "@testing-library/jest-dom"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: testing
- dependency-name: "@testing-library/react"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: testing
...

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

package.json

@@ -59,8 +59,8 @@
   "devDependencies": {
     "@shlinkio/eslint-config-js-coding-standard": "~2.3.0",
     "@shlinkio/stylelint-config-css-coding-standard": "~1.1.1",
-    "@testing-library/jest-dom": "^6.3.0",
-    "@testing-library/react": "^14.1.2",
+    "@testing-library/jest-dom": "^6.4.1",
+    "@testing-library/react": "^14.2.1",
     "@testing-library/user-event": "^14.5.2",
     "@total-typescript/shoehorn": "^0.1.1",
     "@types/react": "^18.2.48",