test: remove test-fs-stat-bigint flaky designation

Refs: nodejs#31727 (comment)
PR-URL: nodejs#51735
Reviewed-By: Michael Dawson <midawson@redhat.com>

Author: lpinca

test/parallel/parallel.status

@@ -55,8 +55,6 @@ test-domain-with-abort-on-uncaught-exception: PASS, FLAKY
 test-tick-processor-arguments: SKIP
 
 [$system==freebsd]
-# https://github.com/nodejs/node/issues/31727
-test-fs-stat-bigint: PASS,FLAKY
 # https://github.com/nodejs/node/issues/31280
 test-worker-message-port-message-before-close: PASS,FLAKY