fix(deps): bump flatted 3.3.1 to 3.4.2 to fix CVE-2026-32141 (#19842)

Fixes Dependabot alert #1146.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: chargome

yarn.lock

@@ -17561,9 +17561,9 @@ flat@^5.0.2:
   integrity sha512-b6suED+5/3rTpUBdG1gupIl8MPFCAMA0QXwmljLhvCUKcUvdE4gWky9zpuGCcXHOsz4J9wPGNWq6OKpmIzz3hQ==
 
 flatted@^3.1.0:
-  version "3.3.1"
-  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.3.1.tgz#21db470729a6734d4997002f439cb308987f567a"
-  integrity sha512-X8cqMLLie7KsNUDSdzeN8FYK9rEt4Dt67OsG/DNGnYTSDBG4uFAJFBnUeiV+zCVAvwFy56IjM9sH51jVaEhNxw==
+  version "3.4.2"
+  resolved "https://registry.npmjs.org/flatted/-/flatted-3.4.2.tgz"
+  integrity sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==
 
 fn.name@1.x.x:
   version "1.1.0"