test: move test-stream-pipeline.js to sequential
Fixes: https://github.com/nodejs/node/issues/24456
In case the tests in https://github.com/nodejs/node/issues/24456#issuecomment-439707915 prove the hypothesis.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
commit message follows commit guidelines