chore(deps): bump js-yaml from 4.2.0 to 5.4.2

[dependabot]

Bumps js-yaml from 4.2.0 to 5.4.2.

Changelog

Sourced from js-yaml's changelog.

[5.4.2] - 2026-09-13

Fixed

• forceQuotes no longer quotes non-string scalars, #798.

[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.

... (truncated)

Commits

• 494400b 5.4.2 released
• 6d8adb4 Fix forceQuotes quoting non-string scalars, #798
• 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
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

---

Summary by cubic

Bumps js-yaml from 4.2.0 to 5.4.2 in packages/core. This is a major upgrade with breaking changes and security fixes, and the PR currently has a merge conflict that needs resolving.

Migration

• 5.4.0 flattens low-level AST node styles; code constructing or editing AST nodes must switch to SCALAR_STYLE/COLLECTION_STYLE and the tagged property.
• The sortKeys option was rewritten, and scalar formatting may change (e.g., whitespace-only strings are now double-quoted) without changing loaded values.
• 5.4.1 hard-limits merge sequences to 100 and counts empty merge sources toward maxTotalMergeKeys.
• The CLI entry point moved from bin/js-yaml.js to bin/js-yaml.mjs.

^{Written for commit fee6629. Summary will update on new commits.}

[strix-security]

Strix is installed on this repository, but we couldn't run this PR security review because this workspace's trial has ended. Add a card to resume code reviews here.

[coderabbitai]

Important

Review skipped

Bot user detected.

To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: f53bb2e2-15a3-4e7e-b5d6-ab483e3290cf

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}