fix: preserve leading-zero numeric strings in YAML stringify

[themavik]

Summary

Fixes #7040.
Root cause: Strings like '08' and '09' were treated as numeric values during YAML stringify, losing their leading zeros. They should be quoted to preserve the original string representation.
Fix: Added a check for leading-zero numeric strings to ensure they are quoted during stringify.

Changes

• Updated YAML stringify logic to detect and quote leading-zero numeric strings

Testing

• Verified fix preserves '08', '09', and similar strings
• Change is minimal and follows YAML spec (leading-zero strings are not valid YAML numbers)

Made with Cursor

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.38%. Comparing base (260f5b8) to head (65369e7).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7054   +/-   ##
=======================================
  Coverage   94.38%   94.38%           
=======================================
  Files         628      628           
  Lines       50175    50175           
  Branches     8840     8840           
=======================================
  Hits        47357    47357           
  Misses       2251     2251           
  Partials      567      567           

☔ View full report in Codecov by Sentry.
📢 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.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}