[codex] fix form-data dependabot alert

[szdziedzic]

Why

Dependabot reported security alert 465 for the transitive runtime dependency form-data (GHSA-hmw2-7cc7-3qxx, CVE-2026-12143). The existing lockfile resolved 4.x ranges to vulnerable 4.0.4/4.0.5; 4.0.6 is the patched 4.x release.

How

Re-resolved form-data with Yarn so the lockfile now pins form-data@4.0.6 for the existing 4.x ranges. The same advisory also covers older 2.x releases, so the existing 2.x range was re-resolved to patched form-data@2.5.6. Added a main changelog chore entry for the security bump.

Test Plan

• corepack yarn fmt
• corepack yarn install --immutable
• corepack yarn why form-data
• corepack yarn lint-changelog
• git diff --check

corepack yarn install --immutable still reports the same pre-existing peer dependency warnings for graphql, oxlint-tsgolint, eslint, and @types/node.

[github-actions]

Subscribed to pull request

File Patterns	Mentions
**/*	@douglowder

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.03%. Comparing base (643cc9e) to head (90388eb).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3962   +/-   ##
=======================================
  Coverage   60.03%   60.03%           
=======================================
  Files         948      948           
  Lines       41648    41648           
  Branches     8744     8744           
=======================================
  Hits        25000    25000           
  Misses      16554    16554           
  Partials       94       94           

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[github-actions]

✅ Thank you for adding the changelog entry!