chore(deps-dev): bump vitest from 3.2.4 to 4.0.0 (#97)

Author: dependabot[bot]

package.json

@@ -60,7 +60,7 @@
     "prettier-plugin-sh": "^0.17.0",
     "prettier-plugin-slidev": "^1.0.5",
     "typescript-eslint": "^8.29.1",
-    "vitest": "^3.1.1"
+    "vitest": "^4.0.0"
   },
   "peerDependencies": {
     "@slidev/types": "*"