doc: use npm-published version of doc-kit

[avivkeller]

Closes #62050

cc @nodejs/web-infra

[nodejs-github-bot]

Review requested:

• @nodejs/actions
• @nodejs/security-wg
• @nodejs/web-infra

[Copilot]

Pull request overview

This PR migrates the doc-kit dependency from a GitHub archive tarball under the @nodejs scope to an npm-published package under the @node-core scope (@node-core/doc-kit@^1.0.0). This simplifies dependency management by using standard npm versioning instead of pinning to specific Git commit SHAs, and removes the custom update tooling that was only needed for the tarball-based approach.

Changes:

• Replaced @nodejs/doc-kit (GitHub tarball) with @node-core/doc-kit@^1.0.0 (npm registry) in package.json, Makefile, and vcbuild.bat
• Removed the custom updater script (update-doc.sh) and commit-fetching utility (get-latest-commit.mjs) that are no longer needed with npm-based versioning
• Removed the doc-kit entry from the CI auto-update workflow (.github/workflows/tools.yml) since npm's standard npm update can handle updates via Dependabot or Renovate

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tools/doc/package.json	Changed dependency from @nodejs/doc-kit (tarball URL) to @node-core/doc-kit@^1.0.0
Makefile	Updated DOC_KIT path from @nodejs/doc-kit to @node-core/doc-kit
vcbuild.bat	Updated doc_kit_exe path from @nodejs/doc-kit to @node-core/doc-kit
.github/workflows/tools.yml	Removed the doc-kit auto-update CI matrix entry
tools/dep_updaters/update-doc.sh	Deleted — no longer needed with npm-based dependency
tools/doc/get-latest-commit.mjs	Deleted — no longer needed with npm-based dependency

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.65%. Comparing base (50fe010) to head (cdb8a4a).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #62139   +/-   ##
=======================================
  Coverage   89.65%   89.65%           
=======================================
  Files         676      676           
  Lines      206481   206543   +62     
  Branches    39544    39545    +1     
=======================================
+ Hits       185121   185178   +57     
+ Misses      13492    13486    -6     
- Partials     7868     7879   +11     

see 29 files with indirect coverage changes

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[avivkeller]

Looks like there might be an npm bug