This updates the JDK time zone data from `tzdata2026b` to `tzdata2026c`. The main tzdata changes included here are:
- Morocco moves back to permanent UTC on 2026-09-20, removing future projected Ramadan negative-DST rules. - Alberta moves to permanent UTC-06, modeled with the traditional `CST` abbreviation after the temporary CLDR workaround period. - British Columbia modeling/commentary is updated from the upstream 2026c data. - Leap second metadata is refreshed with the new expiration date. - Related `TimeZoneData` test data is regenerated for `tzdata2026c`. The tests were adjusted where previous expectations depended on old tzdata behavior or assumed tzdata abbreviations and localized CLDR names would always match: - `NegativeDSTTest.java` and `TestZoneRules.java` no longer expect Morocco negative-DST transitions after the 2026 move to permanent UTC. - `Bug6329116.java` allows the known CLDR localized short-name mismatch for Edmonton/Vancouver and their aliases. - `TestZoneTextPrinterParser.java` restricts daylight-name expectations to zones with explicit CLDR DST-offset metadata, avoiding a false `Mountain Daylight Time` expectation for `America/Yellowknife`. All changed tests, plus tier1, tier2, and tier3 validation, passed. --------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - 8388214: (tz) Update Timezone Data to 2026c Changes: https://git.openjdk.org/jdk/pull/32240/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=32240&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8388214 Stats: 361 lines in 12 files changed: 151 ins; 158 del; 52 mod Patch: https://git.openjdk.org/jdk/pull/32240.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/32240/head:pull/32240 PR: https://git.openjdk.org/jdk/pull/32240
