chore(deps-dev): bump @sveltejs/vite-plugin-svelte from 5.1.1 to 6.2.1

Bumps [@sveltejs/vite-plugin-svelte](https://github.com/sveltejs/vite-plugin-svelte/tree/HEAD/packages/vite-plugin-svelte) from 5.1.1 to 6.2.1.
- [Release notes](https://github.com/sveltejs/vite-plugin-svelte/releases)
- [Changelog](https://github.com/sveltejs/vite-plugin-svelte/blob/main/packages/vite-plugin-svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/vite-plugin-svelte/commits/@sveltejs/vite-plugin-svelte@6.2.1/packages/vite-plugin-svelte)

---
updated-dependencies:
- dependency-name: "@sveltejs/vite-plugin-svelte"
  dependency-version: 6.2.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

packages/svelte/package.json

@@ -53,7 +53,7 @@
   },
   "devDependencies": {
     "@sveltejs/package": "^2.3.10",
-    "@sveltejs/vite-plugin-svelte": "^5.0.3",
+    "@sveltejs/vite-plugin-svelte": "^6.2.1",
     "@testing-library/jest-dom": "^6.9.1",
     "@testing-library/svelte": "^5.2.6",
     "@types/node": "^22.19.3",