Update dependency @sveltejs/vite-plugin-svelte to v6

Author: renovate[bot]

package.json

@@ -37,7 +37,7 @@
     "@iconify-json/lucide": "1.2.54",
     "@iconify-json/simple-icons": "1.2.41",
     "@rollup/plugin-inject": "5.0.5",
-    "@sveltejs/vite-plugin-svelte": "5.1.0",
+    "@sveltejs/vite-plugin-svelte": "6.1.0",
     "@tsconfig/strictest": "2.0.5",
     "@tsconfig/svelte": "5.0.4",
     "@unocss/preset-icons": "66.3.2",