test: unmark test-worker-prof as flaky

This has no longer been flaky since V8 7.5.

Refs: https://bugs.chromium.org/p/v8/issues/detail?id=9333
Fixes: #26401

PR-URL: #29511
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: addaleax

test/parallel/parallel.status

@@ -9,8 +9,6 @@ prefix parallel
 test-fs-stat-bigint: PASS,FLAKY
 # https://github.com/nodejs/node/issues/23207
 test-net-connect-options-port: PASS,FLAKY
-# https://github.com/nodejs/node/issues/26401
-test-worker-prof: SKIP
 
 [$system==win32]
 # https://github.com/nodejs/node/issues/20750