chore(deps): update yarn to v4.9.1

Author: renovate[bot]

package.json

@@ -64,5 +64,5 @@
     "ts-jest": "29.3.1",
     "typescript": "5.8.3"
   },
-  "packageManager": "yarn@4.9.0"
+  "packageManager": "yarn@4.9.1"
 }