chore(deps): update vitest monorepo to v4

Author: renovate[bot]

package.json

@@ -66,9 +66,9 @@
     "@changesets/write": "^0.4.0",
     "@eslint/eslintrc": "^3.3.3",
     "@eslint/js": "^9.39.2",
-    "@vitest/coverage-v8": "^3.2.4",
+    "@vitest/coverage-v8": "^4.0.0",
     "@vitest/eslint-plugin": "^1.6.4",
-    "@vitest/ui": "3.2.1",
+    "@vitest/ui": "4.0.18",
     "ajv": "^8.17.1",
     "esbuild": "^0.25.12",
     "eslint": "^9.39.2",
@@ -82,7 +82,7 @@
     "prettier": "^3.7.4",
     "publint": "^0.3.16",
     "svg-term-cli": "^2.1.1",
-    "vitest": "^3.2.4"
+    "vitest": "^4.0.0"
   },
   "peerDependencies": {
     "ajv": "4.11.8 - 8"