fix(security): bump flatted to 3.4.2 (ENG-13143) (#144)

- flatted 3.3.3 → 3.4.2 via overrides in examples/js/package.json
  (GHSA-rf6f-7fwh-wjgh, CVE-2026-33228, HIGH) Prototype Pollution via parse()
  Also resolves GHSA-25h7-pfq9-p65f (DoS via unbounded recursion, fixed 3.3.4)

Author: andriy-sudo

examples/js/package-lock.json

@@ -25,6 +25,7 @@
   },
   "overrides": {
     "axios": ">=1.13.5",
+    "flatted": "^3.4.2",
     "minimatch": "^3.1.3"
   }
 }