chore(deps-dev): bump happy-dom from 20.8.3 to 20.8.4

Bumps [happy-dom](https://github.com/capricorn86/happy-dom) from 20.8.3 to 20.8.4.
- [Release notes](https://github.com/capricorn86/happy-dom/releases)
- [Commits](capricorn86/happy-dom@v20.8.3...v20.8.4)

---
updated-dependencies:
- dependency-name: happy-dom
  dependency-version: 20.8.4
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

package-lock.json

@@ -81,7 +81,7 @@
     "core-js": "^3.48.0",
     "gettext-extractor": "^4.0.6",
     "gettext-parser": "^9.0.1",
-    "happy-dom": "^20.8.3",
+    "happy-dom": "^20.8.4",
     "sass": "^1.97.3",
     "stylelint": "^17.4.0",
     "tslib": "^2.8.1",