fix: exclude stale matrix runs from CI reports

[panva]

Jenkins can include older configuration runs in a later matrix build. Store the upstream cause where the filter reads it and match the full build number so those runs do not appear in subsequent CI reports.

For example, ncu-ci pr 77202 reports client-proxy/test-https-proxy-request-invalid-char-in-url as failing for nodejs/node#65852. That osx13-x64 #73203 failure actually belongs to the preceding CI #77201, testing nodejs/node#64722 on Node.js 22.

Jenkins includes that older configuration in the runs array for macOS matrix #73204. This fix filters it out using its upstream build number, so #77202 no longer reports the unrelated proxy failure while retaining its actual failures.

Refs: https://github.com/nodejs/reliability/blob/main/reports/2026-09-11.md

Assisted-by: Codex

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 58.23%. Comparing base (d4bbaeb) to head (92db7ff).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1191      +/-   ##
==========================================
+ Coverage   58.13%   58.23%   +0.09%     
==========================================
  Files          53       53              
  Lines       10406    10406              
==========================================
+ Hits         6050     6060      +10     
+ Misses       4356     4346      -10     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 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.