Bump happy-dom from 20.8.3 to 20.8.9 in /frontend

Bumps [happy-dom](https://github.com/capricorn86/happy-dom) from 20.8.3 to 20.8.9.
- [Release notes](https://github.com/capricorn86/happy-dom/releases)
- [Commits](https://github.com/capricorn86/happy-dom/compare/v20.8.3...v20.8.9)

---
updated-dependencies:
- dependency-name: happy-dom
  dependency-version: 20.8.9
  dependency-type: direct:development
...

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

frontend/package.json

@@ -52,7 +52,7 @@
 		"@types/react-dom": "^19.2.3",
 		"@types/react-table": "^7.7.20",
 		"@vitejs/plugin-react": "^5.1.4",
-		"happy-dom": "^20.8.3",
+		"happy-dom": "^20.8.9",
 		"postcss": "^8.5.8",
 		"postcss-simple-vars": "^7.0.1",
 		"sass": "^1.97.3",

frontend/yarn.lock

@@ -1590,10 +1590,10 @@ globrex@^0.1.2:
   resolved "https://registry.yarnpkg.com/globrex/-/globrex-0.1.2.tgz#dd5d9ec826232730cd6793a5e33a9302985e6098"
   integrity sha512-uHJgbwAMwNFf5mLst7IWLNg14x1CkeqglJb/K3doi4dw6q2IvAAmM/Y81kevy83wP+Sst+nutFTYOGg3d1lsxg==
 
-happy-dom@^20.8.3:
-  version "20.8.3"
-  resolved "https://registry.yarnpkg.com/happy-dom/-/happy-dom-20.8.3.tgz#aa59a13c0e43c48819190d913ab5e36800e87431"
-  integrity sha512-lMHQRRwIPyJ70HV0kkFT7jH/gXzSI7yDkQFe07E2flwmNDFoWUTRMKpW2sglsnpeA7b6S2TJPp98EbQxai8eaQ==
+happy-dom@^20.8.9:
+  version "20.8.9"
+  resolved "https://registry.yarnpkg.com/happy-dom/-/happy-dom-20.8.9.tgz#aeacc9ab9aacada379bce0ba37b2f02dabbba286"
+  integrity sha512-Tz23LR9T9jOGVZm2x1EPdXqwA37G/owYMxRwU0E4miurAtFsPMQ1d2Jc2okUaSjZqAFz2oEn3FLXC5a0a+siyA==
   dependencies:
     "@types/node" ">=20.0.0"
     "@types/whatwg-mimetype" "^3.0.2"