chore(deps-dev): Bump js-yaml from 4.2.0 to 4.3.0 in /agent-governance-python/agent-mesh/packages/mcp-proxy

[dependabot]

Bumps js-yaml from 4.2.0 to 4.3.0.

Changelog

Sourced from js-yaml's changelog.

4.3.0, 3.15.0 - 2026-06-27

Security

• Backported maxTotalMergeKeys option.

[5.2.0] - 2026-06-26

Added

• Added maxTotalMergeKeys (10000) loader option to limit the total number of keys processed by YAML merge (<<) across one load() / loadAll() call.
• Added maxAliases (-1) loader option to limit the number of YAML aliases per document.

Removed

• maxMergeSeqLength replaced with maxTotalMergeKeys for limiting YAML merge processing.

Fixed

• Round-trip of integers with exponential form (>= 1e21)

[5.1.0] - 2026-06-23

Added

• Collection tags can finalize an incrementally populated carrier into a different result value.

Changed

• [breaking] quoteStyle now selects the preferred quote style; use the restored forceQuotes option to force quoting non-key strings.

[5.0.0] - 2026-06-20

Added

• Added named exports for schemas, tags, parser events and AST utilities.
• Reworked JSON_SCHEMA and CORE_SCHEMA with spec-compliant scalar resolution rules, and added YAML11_SCHEMA.
• Added realMapTag for lossless mappings with non-string and complex keys. Object-based mappings now reject complex keys instead of stringifying them.
• Added dump() transform option for changing the generated AST before rendering.
• Added dump() options seqInlineFirst, flowBracketPadding, flowSkipCommaSpace, flowSkipColonSpace, quoteFlowKeys, quoteStyle and tagBeforeAnchor.
• Added formal data layers (events and AST) for modular data pipelines.
  • Added low-level parser (to events), presenter and visitor APIs.
• Added the YAML Test Suite to the test set.

Changed

• See the migration guide for upgrade notes.
• Rewritten in TypeScript and reorganized the public API around flat named exports.

... (truncated)

Commits

• 33d05b5 4.3.0 released
• 663bfab Drop demo publish, to not override new v5 one.
• 1cb8c7b Add v4-legacy tag for publish
• 02f27af Restore umd builds back to es5
• 8be84ed Fix es5 compatibility
• 59423c6 Replace maxMergeSeqLength option with maxTotalMergeKeys (more robust). Ba...
• 6842ef6 doc polish
• See full diff in compare view

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PR Review Summary

Check	Status	Details
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[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

OpenSSF Scorecard

Package	Version	Score	Details
npm/js-yaml	4.3.0	🟢 6	Details Check Score Reason Code-Review ⚠️ 0 Found 2/30 approved changesets -- score normalized to 0 Maintained 🟢 10 30 commit(s) and 28 issue activity found in the last 90 days -- score normalized to 10 Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Token-Permissions 🟢 10 GitHub workflow tokens follow principle of least privilege Packaging ⚠️ -1 packaging workflow not detected Binary-Artifacts 🟢 10 no binaries found in the repo CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected Pinned-Dependencies 🟢 3 dependency not pinned by hash detected -- score normalized to 3 License 🟢 10 license file detected Fuzzing 🟢 10 project is fuzzed Branch-Protection ⚠️ 0 branch protection not enabled on development/release branches Signed-Releases ⚠️ -1 no releases found Security-Policy 🟢 4 security policy file detected SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0

Scanned Files

• agent-governance-python/agent-mesh/packages/mcp-proxy/package-lock.json

[github-actions]

📦 Dependency diff (SBOM)

Comparing main → dependabot/npm_and_yarn/agent-governance-python/agent-mesh/packages/mcp-proxy/js-yaml-4.3.0.

Summary: ➕ 0 added · ➖ 0 removed · 🔄 1 bumped

🔄 Bumped

npm (1)

Package	From	To
%40microsoft/agentmesh-mcp-proxy	4.1.0	5.0.0