Repro: V8 heap corruption with nodeProfilingIntegration() + worker threads

Reproduces getsentry/sentry-javascript#20029.

Setup

npm install

Reproduce the crash

node repro.js

Run it a few times — crash rate is ~40-60% per run. Crashed workers show CRASHED (exit code ...) in the output.

Verify profiling is the cause

DISABLE_PROFILING=1 node repro.js

With profiling disabled, 0% crash rate.