Test has been flaky with timeouts in CI. This is possibly due to the
repeated large allocations on the main thread. This commit reduces the
allocation size and makes a number of other cleanups. The main goal
is to hopefully make this test more reliable / not-flaky.
Also move the test to sequential. The frequent large allocations
could be causing the test to be flaky if run parallel to other tests.
PR-URL: https://github.com/nodejs/node/pull/54839
Refs: https://github.com/nodejs/node/issues/52274
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>