misc/zoneinfo: Update to 2022b

Changes:
 * Chile's DST is delayed by a week in September 2022.
 * Iran no longer observes DST after 2022.
 * Rename Europe/Kiev to Europe/Kyiv.
 * New zic -R option
 * Vanguard form now uses %z.
 * Finish moving duplicate-since-1970 zones to 'backzone'.