bump clean-css because of removed utils.isRegex function

https://nodejs.org/docs/latest-v22.x/api/util.html#utilisregexpobject

Author: mansona

package.json

@@ -24,5 +24,10 @@
   "publishConfig": {
     "registry": "https://registry.npmjs.org"
   },
+  "pnpm": {
+    "overrides": {
+      "clean-css@3": "^4.0.0"
+    }
+  },
   "packageManager": "pnpm@10.17.0+sha512.fce8a3dd29a4ed2ec566fb53efbb04d8c44a0f05bc6f24a73046910fb9c3ce7afa35a0980500668fa3573345bd644644fa98338fa168235c80f4aa17aa17fbef"
 }