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

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[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