fix: update major script typo

[GordonSmith]

Checklist:

• The commit message is properly formatted and free of typos.
  • The commit message title makes sense in a changelog, by itself.
  • The commit message includes a "fixes" reference if appropriate.
  • The commit is signed.
• The change has been fully tested:
  • I have viewed all related gallery items
  • I have viewed all related dermatology items
• There are no similar instances of the same problem that should be addressed
  • I have addressed them here
  • I have raised new issues to address them separately

Testing:

[Copilot]

Pull Request Overview

This PR fixes a critical typo in the package.json scripts that was preventing the major update functionality from working correctly. The script name inconsistency would have caused runtime errors when executing the update-major command.

• Renamed update-root-major script to update-major-root for consistency
• Fixed the update-major script to reference the correctly named update-major-root script