chore: update redirect links

[nodejs-github-bot]

No description provided.

[cursor]

PR Summary

Low Risk
Data-only constant updates for the standard Node release sync; incorrect versions could misroute downloads or docs, but the change scope is limited to version maps and directory cache metadata.

Overview
Updates release metadata so latest aliases and symlink targets match new Node drops on the dist bucket.

latestVersions.json moves latest-v24.x / latest-krypton to v24.19.0, and latest-v26.x, latest, and node-latest.tar.gz to v26.6.0 (from v24.18.1 / v26.5.1).

fileSymlinks.json repoints root node-config-schema.json and llms.txt to v26.6.0 docs paths.

cachedDirectories.json adds v24.19.0/ and v26.6.0/ under release listings (and the docs mirror), and refreshes index.json / index.tab / node-latest.tar.gz timestamps and sizes.

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