fix: bump markdownlint to 0.38

[JoshuaKGoldberg]

PR Checklist

• Addresses an existing open issue: fixes #000 General dependency bump.
• That issue was marked as status: accepting prs
• Steps in CONTRIBUTING.md were taken

Overview

Bumps:

 markdownlint     0.37.4  →  0.38.0
 markdownlint-cli 0.44.0  →  0.45.0

🎁

[github-actions]

👋 Hi @JoshuaKGoldberg, thanks for the pull request! A scan flagged a concern with it. Could you please take a look?

[pr-linked-issue] This pull request is not linked as closing any issues. This repository keeps to GitHub issues for discussing potential changes. Most or all changes should be marked as approved in an issue before a pull request is sent to resolve them. To resolve this report:

• If this is a straightforward documentation change that doesn't need an issue, you can ignore this report
• If there is a backing issue, add a 'fixes #...' link to the pull request body
• Otherwise, file an issue explaining what you'd like to happen

🗺️ This message was posted automatically by OctoGuide: a bot for GitHub repository best practices.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.80%. Comparing base (8786f9a) to head (4e5c150).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2238   +/-   ##
=======================================
  Coverage   99.80%   99.80%           
=======================================
  Files         136      136           
  Lines        6099     6099           
  Branches      505      505           
=======================================
  Hits         6087     6087           
  Misses         12       12           

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[github-actions]

🎉 This is included in version v2.44.5 🎉

The release is available on:

• GitHub releases
• npm package (@latest dist-tag)

Cheers! 📦🚀