build(deps-dev): Bump @testing-library/jest-dom from 6.8.0 to 6.9.0

Bumps [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) from 6.8.0 to 6.9.0.
- [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@v6.8.0...v6.9.0)

---
updated-dependencies:
- dependency-name: "@testing-library/jest-dom"
  dependency-version: 6.9.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package.json

@@ -38,7 +38,7 @@
     "@sveltejs/kit": "2.43.5",
     "@sveltejs/vite-plugin-svelte": "6.2.1",
     "@tailwindcss/forms": "0.5.10",
-    "@testing-library/jest-dom": "6.8.0",
+    "@testing-library/jest-dom": "6.9.0",
     "@types/gtag.js": "0.0.20",
     "@types/jsdom": "21.1.7",
     "@typescript-eslint/eslint-plugin": "8.45.0",