chore(deps-dev): bump @sveltejs/kit

Bumps the npm_and_yarn group with 1 update in the /frontend directory: [@sveltejs/kit](https://github.com/sveltejs/kit/tree/HEAD/packages/kit).


Updates `@sveltejs/kit` from 2.8.3 to 2.20.6
- [Release notes](https://github.com/sveltejs/kit/releases)
- [Changelog](https://github.com/sveltejs/kit/blob/main/packages/kit/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/kit/commits/@sveltejs/kit@2.20.6/packages/kit)

---
updated-dependencies:
- dependency-name: "@sveltejs/kit"
  dependency-version: 2.20.6
  dependency-type: direct:development
  dependency-group: npm_and_yarn
...

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

frontend/package.json

@@ -18,7 +18,7 @@
 		"@iconify-json/mdi": "^1.1.67",
 		"@sveltejs/adapter-node": "^5.2.0",
 		"@sveltejs/adapter-vercel": "^5.4.1",
-		"@sveltejs/kit": "^2.8.3",
+		"@sveltejs/kit": "^2.20.6",
 		"@sveltejs/vite-plugin-svelte": "^3.1.1",
 		"@tailwindcss/typography": "^0.5.13",
 		"@types/node": "^22.5.4",