chore(deps): bump js-yaml from 4.3.2 to 5.4.1

[dependabot]

Bumps js-yaml from 4.3.2 to 5.4.1.

Changelog

Sourced from js-yaml's changelog.

[5.4.1] - 2026-08-26

Changed

• Hard-limit merge sequence size to 100.

Security

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

[5.4.0] - 2026-08-25

Added

• Added the scalarStyleRules dumper option to customize string formatting. See Scalar styling for details.

Changed

• [breaking] Flattened the low-level AST node style representation. Scalar and collection nodes now use SCALAR_STYLE and COLLECTION_STYLE values; explicit tags use the separate tagged property. Alias nodes now contain only kind and anchor. This only affects code that directly constructs or edits AST nodes.
• [breaking] The sortKeys option was rewritten using AST mutation to avoid side effects.
• Reworked scalar style selection. This can change formatting without changing loaded values; in particular, whitespace-only strings are now double-quoted.

Fixed

• Accept a byte order mark at the start of each document in a stream, #791.
• Produce valid flow mappings with quoteFlowKeys and flowSkipColonSpace, including alias and property-only keys, #786.
• Preserve empty scalar items when converting block sequences to flow style.
• Do not apply the 1024-character simple-key limit to flow mapping keys.
• Count Unicode code points, rather than UTF-16 code units, for the 1024-character simple-key limit.
• Add an explicit document-end marker after keep-chomped block scalars when needed to preserve trailing newlines.

[5.3.0] - 2026-08-14

This release focuses on reworking the documentation and making small architectural improvements before moving forward.

Added

• Added completely new documentation.
• Exported DUMP_SCHEMA, the default schema used by the dumper.
• Added YAMLException.throwAt() for throwing an error at a source position.

Changed

... (truncated)

Commits

• e5a3ba0 5.4.1 released
• e54dea3 Hard-limit merge sequence size to 100
• dfd3a29 Cleanup 6a8e05f, #797
• 6a8e05f fix: count empty merge sources against maxTotalMergeKeys (#797)
• 6b4ff5e 5.4.0 released
• 3b3625e Update changelog
• 4f25a74 Fix file name
• 3bd003b Expose new scalar styling API
• fbb3e9d Remove regex lookbehind for ES2015 compatibility
• d43c185 Fix flowSkipColonSpace by forcing quoteFlowKeys
• Additional commits viewable in compare view

[Copilot]

🔵 Needs a closer look

This is a major-version dependency upgrade (4.x → 5.x) with stated upstream breaking changes, and correctness depends on runtime behavior that can’t be fully verified from the diff alone.

Pull request overview

Updates the repository’s Node.js dependency graph by bumping the direct js-yaml dependency to the 5.x line, along with the corresponding Yarn lockfile updates, to pick up the latest upstream changes and security-related limits.

Changes:

• Bump js-yaml in package.json from ^4.1.1 to ^5.4.1.
• Update yarn.lock to add the js-yaml@^5.4.1 resolution while retaining existing 3.x/4.x resolutions required by transitive dependencies.

File summaries

File	Description
package.json	Updates the direct js-yaml dependency range to ^5.4.1.
yarn.lock	Adds lock entry for js-yaml@^5.4.1 and adjusts selectors accordingly; keeps older versions for transitive requirements.

Review details

• Files reviewed: 1/2 changed files
• Comments generated: 0
• Review effort level: Lite

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[Copilot]

🟡 Changes recommended

A remaining Yarn resolution still pins Mocha to js-yaml v4, making the upgrade incomplete relative to the PR’s stated intent.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Review details

• Files reviewed: 1/2 changed files
• Comments generated: 1
• Review effort level: Lite