Bump @testing-library/jest-dom from 6.6.3 to 6.6.4 in the testing group

Bumps the testing group with 1 update: [@testing-library/jest-dom](https://github.com/testing-library/jest-dom).


Updates `@testing-library/jest-dom` from 6.6.3 to 6.6.4
- [Release notes](https://github.com/testing-library/jest-dom/releases)
- [Changelog](https://github.com/testing-library/jest-dom/blob/main/CHANGELOG.md)
- [Commits](testing-library/jest-dom@v6.6.3...v6.6.4)

---
updated-dependencies:
- dependency-name: "@testing-library/jest-dom"
  dependency-version: 6.6.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: testing
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -80,7 +80,7 @@
     "@shlinkio/shlink-js-sdk": "^2.2.0",
     "@stylistic/eslint-plugin": "^5.2.2",
     "@tailwindcss/vite": "^4.1.11",
-    "@testing-library/jest-dom": "^6.6.3",
+    "@testing-library/jest-dom": "^6.6.4",
     "@testing-library/react": "^16.3.0",
     "@testing-library/user-event": "^14.6.1",
     "@total-typescript/shoehorn": "^0.1.2",