test: force GC in test-file-write-stream4

[lpinca]

Reduce test/parallel/test-file-write-stream4.js flakiness.

Refs: #57927

[lpinca]

Alternative to #57927.

[lpinca]

I think we can land this before #57927, and see if it has the desired effect. If it doesn't, we can revert and land #57927 instead.

[jasnell]

I'm not sure that this and the PR marking this test as flaky are mutually exclusive. We can do both then remove the flaky flag once we believe it has been fixed.

[lpinca]

In my opinion, landing both does not make much sense.

[lpinca]

$ npx envinfo --system

  System:
    OS: macOS 15.4.1
    CPU: (16) x64 Intel(R) Xeon(R) W-2140B CPU @ 3.20GHz
    Memory: 1.66 GB / 32.00 GB
    Shell: 5.2.37 - /usr/local/bin/bash

Before the patch

$ python3 tools/test.py --repeat=1000 test/parallel/test-file-write-stream4
=== release test-file-write-stream4 ===                   
Path: parallel/test-file-write-stream4
Command: out/Release/node --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /Users/luigi/code/node/test/parallel/test-file-write-stream4.js
--- TIMEOUT ---


=== release test-file-write-stream4 ===                   
Path: parallel/test-file-write-stream4
Command: out/Release/node --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /Users/luigi/code/node/test/parallel/test-file-write-stream4.js
--- TIMEOUT ---

...

[04:15|% 100|+ 982|-  18]: Done

Failed tests:
out/Release/node --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /Users/luigi/code/node/test/parallel/test-file-write-stream4.js
out/Release/node --test-reporter=./test/common/test-error-reporter.js --test-reporter-destination=stdout /Users/luigi/code/node/test/parallel/test-file-write-stream4.js

...

After the patch

$ python3 tools/test.py --repeat=1000 test/parallel/test-file-write-stream4
[01:13|% 100|+ 1000|-   0]: Done                          

All tests passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.27%. Comparing base (52d95f5) to head (5bfd30f).
Report is 14 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #57930      +/-   ##
==========================================
+ Coverage   90.26%   90.27%   +0.01%     
==========================================
  Files         630      630              
  Lines      185933   185933              
  Branches    36450    36443       -7     
==========================================
+ Hits       167829   167853      +24     
+ Misses      10972    10964       -8     
+ Partials     7132     7116      -16     

see 27 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/66356/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/66358/

[nodejs-github-bot]

Landed in 422529a