ICU-22926 Update the link to CLDR Zone-Tzid mapping data page

[yumaoka]

Fixed the CLDR Zone-Tzid mapping data page link

old: http://unicode.org/cldr/charts/supplemental/zone_tzid.html
new: https://www.unicode.org/cldr/charts/latest/supplemental/zone_tzid.html (redirected to the latest release version page)

Checklist

• Required: Issue filed: ICU-22926
• Required: The PR title must be prefixed with a JIRA Issue number. Example: "ICU-NNNNN Fix xyz"
• Required: Each commit message must be prefixed with a JIRA Issue number. Example: "ICU-NNNNN Fix xyz"
• Issue accepted (done by Technical Committee after discussion)
• Tests included, if applicable
• API docs and/or User Guide docs changed or added, if applicable
• Approver: Feel free to merge on my behalf