ibmi: investigate test timeouts / flaky test

[abmusse]

CI: https://ci.nodejs.org/job/node-test-commit-ibmi/1945

Test Result (9 failures / +2)

# new timeouts
parallel.test-http-proxy-fetch
parallel.test-https-proxy-fetch
benchmark.test-benchmark-websocket
parallel.test-inspector-network-fetch
es-module.test-wasm-web-api
parallel.test-fetch
parallel.test-without-async-context-frame
report.test-report-exclude-network
# truly flaky test that randomly fails
parallel.test-process-cpuUsage

Goal is to investigate why these are now timing out / flaky and to get the CI passing.

I think we should mark these as flaky for now while investigation is ongoing

[github-actions]

This issue has been marked as stale due to 210 days of inactivity.
It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.

[github-actions]

This issue has been automatically closed after 30 days of inactivity following its stale status (no activity for a total of 240 days).
If this is still relevant, feel free to reopen it or leave a comment with additional details so we can continue the discussion.