chore(deps): update dependency vitest to v3

Author: renovate[bot]

package.json

@@ -43,7 +43,7 @@
     "ts-node": "10.9.2",
     "tsup": "7.2.0",
     "typescript": "5.8.2",
-    "vitest": "0.34.6"
+    "vitest": "3.0.9"
   },
   "peerDependencies": {
     "postcss": "^8.0.0"