test: remove test-macos-app-sandbox flaky designation

Fixes: nodejs#54811
Refs: nodejs#54811 (comment)
PR-URL: nodejs#56471
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Daeyeon Jeong <daeyeon.dev@gmail.com>

Author: lpinca

test/parallel/parallel.status

@@ -44,8 +44,6 @@ test-runner-watch-mode: PASS,FLAKY
 # https://github.com/nodejs/node/issues/42741
 test-http-server-headers-timeout-keepalive: PASS,FLAKY
 test-http-server-request-timeout-keepalive: PASS,FLAKY
-# https://github.com/nodejs/node/issues/54811
-test-macos-app-sandbox: PASS, FLAKY
 
 [$arch==arm || $arch==arm64]
 # https://github.com/nodejs/node/pull/31178