Bump @testing-library/dom from 8.14.0 to 8.20.0

Bumps [@testing-library/dom](https://github.com/testing-library/dom-testing-library) from 8.14.0 to 8.20.0.
- [Release notes](https://github.com/testing-library/dom-testing-library/releases)
- [Changelog](https://github.com/testing-library/dom-testing-library/blob/main/CHANGELOG.md)
- [Commits](testing-library/dom-testing-library@v8.14.0...v8.20.0)

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

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

package.json

@@ -74,7 +74,7 @@
     "@rollup/plugin-node-resolve": "^13.3.0",
     "@rollup/plugin-typescript": "^8.3.2",
     "@stylelint/postcss-css-in-js": "^0.38.0",
-    "@testing-library/dom": "^8.13.0",
+    "@testing-library/dom": "^8.20.0",
     "@testing-library/jest-dom": "^5.16.4",
     "@types/jest": "^27.4.1",
     "@types/jest-dev-server": "^5.0.0",