test: fix test-cluster-send-handle-large-payload

[Trott]

test-cluster-send-handle-large-payload is susceptible to failure if it
is competing for resources. Move to sequential directory so it is not
competing with other tests.

Fixes: #14844

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• commit message follows commit guidelines

[Trott]

CI: https://ci.nodejs.org/job/node-test-pull-request/13651/

[santigimeno]

This will make the test less flaky but the freeBSD issue will remain.

[Trott]

This will make the test less flaky but the freeBSD issue will remain.

@santigimeno Stress tests on FreeBSD show that there the test does not fail except when run in parallel (that is, with -j and --repeat set appropriately). In other words, I believe this will in fact fix the issue on FreeBSD (or at least make it vastly less frequent).

[santigimeno]

Yeah, I don't disagree. I meant that the underlying issue will still be there though less visible.

[Trott]

Yeah, I don't disagree. I meant that the underlying issue will still be there though less visible.

Oh, I see. Yes. If we can find a way to trigger the issue reliably without consuming a ton of resources, we could create a known_issues test for it....

[Trott]

Landed in 5e23b65