Bump @testing-library/jest-dom from 6.9.1 to 7.0.0

Bumps [@testing-library/jest-dom](https://github.com/testing-library/jest-dom) from 6.9.1 to 7.0.0.
- [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@v6.9.1...v7.0.0)

---
updated-dependencies:
- dependency-name: "@testing-library/jest-dom"
  dependency-version: 7.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

demo/package.json

@@ -9,7 +9,7 @@
     "@emotion/styled": "^11.14.1",
     "@mui/icons-material": "^9.0.0",
     "@mui/material": "^9.0.0",
-    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/jest-dom": "^7.0.0",
     "@testing-library/react": "^16.3.2",
     "@testing-library/user-event": "^14.6.1",
     "@types/jest": "^30.0.0",