chore(deps-dev): Bump happy-dom from 20.4.0 to 20.6.1

Bumps [happy-dom](https://github.com/capricorn86/happy-dom) from 20.4.0 to 20.6.1.
- [Release notes](https://github.com/capricorn86/happy-dom/releases)
- [Commits](capricorn86/happy-dom@v20.4.0...v20.6.1)

---
updated-dependencies:
- dependency-name: happy-dom
  dependency-version: 20.6.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -44,7 +44,7 @@
     "@nextcloud/vite-config": "^2.5.2",
     "@vitest/coverage-v8": "^4.0.18",
     "eslint": "^9.39.2",
-    "happy-dom": "^20.4.0",
+    "happy-dom": "^20.6.1",
     "typedoc": "^0.28.17",
     "typescript": "^5.9.3",
     "vite": "^7.3.1",