test: move net bytes-per-chunk test to sequential

The test is timing out on FreeBSD 10 in CI. It takes less than half as
long to run when it is in sequential on that platform instead of
parallel.

Refs: https://github.com/nodejs/node/pull/21322#issuecomment-399311718

PR-URL: https://github.com/nodejs/node/pull/21457
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit is contained in:
Rich Trott 2018-06-21 20:51:52 -07:00 committed by Michaël Zasso
parent 686cb4dbd0
commit 1ee4703974
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