<i18n dev> RFR: 8304763: (tz) Update Timezone Data to 2023a

Fri Mar 31 00:11:22 UTC 2023

Pleases review this PR. 
The PR includes the following changes.
- tzdata 2023c
- Hack code to deal with Cairo's DST end, which is same as done in 2014g([JDK-8049343](https://bugs.openjdk.org/browse/JDK-8049343)).  To work around the the limitation of JSR 310 compiler, where the time 24:00 is recognized as 0:00 in the previous day.

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Commit messages:
 - 1st commit for tz2023c

Changes: https://git.openjdk.org/jdk/pull/13255/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13255&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8304763
  Stats: 333 lines in 18 files changed: 189 ins; 24 del; 120 mod
  Patch: https://git.openjdk.org/jdk/pull/13255.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13255/head:pull/13255

PR: https://git.openjdk.org/jdk/pull/13255