ci: fix false positives in broken link checker

[Tnalxmsk]

Overview

Closes #1983.

The scheduled Broken link checker reports three false positives in the
latest workflow run:

• Two npm package links return HTTP 403 because npm serves a Cloudflare
  challenge to automated requests.
• The TanStack Query v5 installation link returns HTTP 308 and redirects
  to its canonical latest URL.

This keeps the scheduled workflow red even though all target resources exist.

Changes

• Exclude npmjs.com URLs because automated requests cannot validate them
  reliably.
• Replace the redirected TanStack Query URL with its canonical URL so it
  remains covered by the checker.
• Keep the English and Korean migration documentation aligned.

Verification

• Formatting check passed for all changed files.
• ESLint passed for both changed MDX files.
• The canonical TanStack Query URL returns HTTP 200 without redirects.
• Because the checker crawls the production site, the production-only legacy
  URL was temporarily excluded during verification:
  • 8,721 links found
  • 8,548 links excluded
  • 0 broken links

PR Checklist

• I did below actions if need

1. I read the Contributing Guide
2. I added documents and tests.

[coauthors]

People can be co-author:

Candidate	Reasons	Count	Add this as commit message
@Tnalxmsk	#1984	1	Co-authored-by: Tnalxmsk <113881311+Tnalxmsk@users.noreply.github.com>

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