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
...

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Author: dependabot[bot]