chore(deps): update dependency vitest to v4

Author: renovate[bot]

package.json

@@ -103,7 +103,7 @@
     "vercel-submodules": "1.0.10",
     "vite": "7.1.9",
     "vite-plugin-dts": "4.5.4",
-    "vitest": "3.2.4"
+    "vitest": "4.0.3"
   },
   "engines": {
     "node": ">=18.0.0"

packages/frameworks/svelte/package.json

@@ -35,7 +35,7 @@
     "clean-package": "2.2.0",
     "clsx": "^2.1.1",
     "svelte": "5.39.12",
-    "vitest": "3.2.4"
+    "vitest": "4.0.3"
   },
   "peerDependencies": {
     "svelte": ">=5"