Reveert jest-extended update

Author: angrykoala

package-lock.json

@@ -54,7 +54,7 @@
         "eslint-config-prettier": "10.1.8",
         "eslint-plugin-tsdoc": "0.5.0",
         "jest": "30.2.0",
-        "jest-extended": "7.0.0",
+        "jest-extended": "6.0.0",
         "prettier": "3.6.2",
         "ts-jest": "29.4.5",
         "typedoc": "0.28.14",