chore(deps): update dependency vitest to v4

Author: renovate[bot]

packages/cypress-plugin-visual-regression-diff/package.json

@@ -80,7 +80,7 @@
     "tmp-promise": "3.0.3",
     "typescript": "5.1.6",
     "vite-tsconfig-paths": "4.2.1",
-    "vitest": "0.33.0"
+    "vitest": "4.0.5"
   },
   "keywords": [
     "Cypress",