deps: update timezone to 2026c

[nodejs-github-bot]

This PR was generated by .github/workflows/timezone-update.yml and tools/dep_updaters/update-timezone.mjs.

Updates the ICU files as per the instructions present in https://github.com/nodejs/node/blob/main/doc/contributing/maintaining/maintaining-icu.md#time-zone-data

To test, build node off this branch & log the version of tz using

console.log(process.versions.tz)

[nodejs-github-bot]

Review requested:

• @nodejs/security-wg

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.15%. Comparing base (4f844f4) to head (668bde7).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #64588      +/-   ##
==========================================
+ Coverage   90.13%   90.15%   +0.01%     
==========================================
  Files         741      741              
  Lines      241976   241976              
  Branches    45543    45540       -3     
==========================================
+ Hits       218116   218147      +31     
+ Misses      15379    15340      -39     
- Partials     8481     8489       +8     

see 27 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/74888/