Bump js-yaml from 3.15.0 to 3.15.2 in /tests/workflows

[dependabot]

Bumps js-yaml from 3.15.0 to 3.15.2.

Changelog

Sourced from js-yaml's changelog.

3.15.2 - 2026-08-26

Changed

• [backport] Hard-limit merge sequence size to 100.

Security

• [backport] Count empty mappings in merge sequences toward maxTotalMergeKeys to limit CPU usage, #797.

3.15.1 - 2026-07-31

Security

• [backport] Remove quadratic complexity from !!omap duplicate key detection.

Commits

• 5c45bd6 3.15.2 released
• 5a708f9 dist rebuild
• 3485bc0 Backport merge limits from v5.4.1
• f34812f Update .gitignore
• ab85ae2 3.15.1 released
• 30a5e76 dist rebuild
• 22a8071 Backport quadratic complexity fix for !!omap
• See full diff in compare view

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[github-actions]

Dependency Bump Evaluation

Version change: js-yaml 3.15.0 -> 3.15.2 (patch)
Scope: tests/workflows/yarn.lock only — no source code changes

Changes:

• 3.15.1: [Security] Backport fix for quadratic complexity in !!omap duplicate key detection (DoS mitigation)
• 3.15.2: [Security] Backport merge sequence size hard-limit (100) and count empty mappings toward maxTotalMergeKeys to limit CPU usage (#797)

Breaking changes: None
Security concerns: None — this PR fixes two CPU/DoS vulnerabilities (backports from v5.4.1)
Impact on codebase: Negligible. js-yaml is not directly imported in any source file; it is a transitive dependency only. The change is confined to the test workflow lockfile.
CI status: dependency-review and prettier passed. test, CodeQL, and Test GitHub Actions workflows still in progress at time of review.
Recommendation: SAFE TO MERGE

— Claude Code