chore(deps): bump json gem to 2.21.2 (Dependabot #53)

[VatsalSy]

Description

Security hygiene PR to resolve Dependabot alert #53 for the transitive Ruby json gem in Gemfile.lock.

Also fixes a pre-existing CI failure on main where the npm js-yaml security override (>=4.3.1) resolved to js-yaml 5.x, breaking markdownlint-cli2 ESM imports during npm run lint:md.

Type of Change

• Bug fix
• New feature
• Content update (Team/Publication)
• Documentation update
• Other (please describe) — dependency security update

Changes Made

• Ran bundle update json to bump json from 2.20.0 → 2.21.2
• Pinned npm override js-yaml from >=4.3.1 to 4.3.1 so markdownlint-cli2 keeps a default ESM export (js-yaml 5.x removed it)
• Updated package-lock.json accordingly
• json is a transitive dependency via faraday → jekyll-gist → octokit; it is not pinned in the Gemfile

Vulnerability

• CVE-2026-71847 / GHSA-9hj4-r449-hfvc
• Heap use-after-free in JSON::ResumableParser#partial_value affecting json 2.20.0–2.21.1
• Fixed in 2.21.2

Major-version judgment

Not required. This is a patch-level bump within the 2.x line (2.20.0 → 2.21.2). No Gemfile changes needed.

Testing Done

• bundle update json completed successfully
• bundle exec jekyll build succeeds locally
• npm ci && npm run lint:md passes locally
• Jekyll site CI passes on this branch
• Tested locally using bundle exec jekyll serve
• Checked all links and references
• Verified content formatting
• Cross-browser testing (if UI changes)

Related Issues

Addresses Dependabot alert #53.

Checklist

• Code follows the project's style guidelines
• Changes have been tested locally (Jekyll build)
• All links are valid and working
• Images are optimized and properly sized
• Content is properly formatted
• Documentation has been updated (if needed)

Additional Notes

CI (Jekyll site CI) is green on this PR. Do not merge until Dependabot marks alert #53 resolved.

  

Summary by CodeRabbit

• Chores
  • Updated the YAML parsing package version constraint to use a fixed, specific release.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 8798f0a and bb796cc.

⛔ Files ignored due to path filters (2)

• Gemfile.lock is excluded by !**/*.lock
• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (1)

• package.json

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• GitHub Check: Cursor Bugbot
• GitHub Check: build

🔇 Additional comments (1)

package.json (1)

42-42: LGTM!

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📝 Walkthrough

Walkthrough

The js-yaml override in package.json now requires exactly version 4.3.1 instead of version 4.3.1 or newer.

Changes

Dependency override

Layer / File(s)	Summary
Pin js-yaml version package.json	The js-yaml override now specifies exactly version 4.3.1.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Merge Risk: ⚪ Minimal · up to bb796

This PR updates dependencies and reports a successful Jekyll build; no actionable merge-blocking risk remains beyond normal CI checks and confirming the security alert is resolved.

Suggested reviewers: comphy-bot

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the dependency update to json gem 2.21.2, which is a primary objective of the pull request.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch rayleigh-cloud/bump-json-gem-6d26

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