test: remove test-worker-memory flaky designation

Judging from https://github.com/nodejs/reliability/issues, this hasn't
failed in CI since November 2021.

Closes: #23277

PR-URL: #41867
Fixes: #23277
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>

Author: Trott

test/parallel/parallel.status

@@ -11,8 +11,6 @@ test-repl-sigint-nested-eval: PASS, FLAKY
 [$system==win32]
 # https://github.com/nodejs/node/issues/24497
 test-timers-immediate-queue: PASS,FLAKY
-# https://github.com/nodejs/node/issues/23277
-test-worker-memory: PASS,FLAKY
 # https://github.com/nodejs/node/issues/41206
 test-crypto-keygen: PASS,FLAKY
 # https://github.com/nodejs/node/issues/41201