Investigate flaky test-stdout-close-catch on FreeBSD in CI

https://ci.nodejs.org/job/node-test-commit-freebsd/27488/nodes=freebsd11-x64/console on test-digitalocean-freebsd11-x64-1

00:20:42 not ok 1923 parallel/test-stdout-close-catch
00:20:42   ---
00:20:42   duration_ms: 120.101
00:20:42   severity: fail
00:20:42   exitcode: -15
00:20:42   stack: |-
00:20:42     timeout
00:20:42   ...

It seems to be timing out along with parallel/test-worker-message-port-message-before-close a fair amount. In addition to the one above, there's:

In all three cases, those two tests timed out.

@nodejs/testing @nodejs/platform-freebsd