build(deps-dev): bump @sveltejs/kit from 2.8.1 to 2.8.4

Bumps [@sveltejs/kit](https://github.com/sveltejs/kit/tree/HEAD/packages/kit) from 2.8.1 to 2.8.4.
- [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@2.8.4/packages/kit)

---
updated-dependencies:
- dependency-name: "@sveltejs/kit"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -51,7 +51,7 @@
 		"@release-it/conventional-changelog": "^9.0.3",
 		"@rollup/plugin-typescript": "^12.1.1",
 		"@sveltejs/adapter-vercel": "^5.4.7",
-		"@sveltejs/kit": "^2.8.1",
+		"@sveltejs/kit": "^2.8.4",
 		"@sveltejs/vite-plugin-svelte": "^4.0.1",
 		"@types/cookie": "^0.6.0",
 		"@typescript-eslint/eslint-plugin": "^8.14.0",