chore(deps): update dependency vitest to v4

Author: renovate[bot]

package.json

@@ -57,7 +57,7 @@
  "typescript": "^5.9.2",
  "typescript-eslint": "^8.41.0",
  "vite": "^7.1.4",
- "vitest": "^3.2.4"
+ "vitest": "^4.0.0"
  },
  "lint-staged": {
  "*.{js,ts,svelte,html,md,svx}": "eslint --cache --fix",

packages/e2e-tests/package.json

@@ -5,7 +5,7 @@
  "devDependencies": {
  "css-color-names": "^1.0.1",
  "tree-kill": "^1.2.2",
- "vitest": "^3.2.4"
+ "vitest": "^4.0.0"
  },
  "type": "module"
 }