chore(deps): update test packages to v4 (major) (#108)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -38,7 +38,7 @@
   "devDependencies": {
     "@antfu/eslint-config": "6.1.0",
     "@types/node": "latest",
-    "@vitest/coverage-v8": "3.2.4",
+    "@vitest/coverage-v8": "4.0.3",
     "bumpp": "10.3.1",
     "changelogithub": "13.16.1",
     "eslint": "9.38.0",
@@ -48,7 +48,7 @@
     "simple-git-hooks": "2.13.1",
     "typescript": "5.9.3",
     "unbuild": "3.6.1",
-    "vitest": "3.2.4"
+    "vitest": "4.0.3"
   },
   "resolutions": {
     "fetchdts": "link:."