chore(deps): update dependency @sveltejs/vite-plugin-svelte to v6 (#90)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

packages/sanity-sveltekit/package.json

@@ -43,7 +43,7 @@
     "@sveltejs/adapter-auto": "^6.1.0",
     "@sveltejs/kit": "^2.43.5",
     "@sveltejs/package": "^2.5.4",
-    "@sveltejs/vite-plugin-svelte": "^5.1.1",
+    "@sveltejs/vite-plugin-svelte": "^6.2.1",
     "publint": "^0.3.13",
     "svelte": "^5.39.7",
     "svelte-check": "^4.3.2",