[jdk21u-dev] RFR: 8347965: (tz) Update Timezone Data to 2025a

[Radek Čáp]

Backport of https://bugs.openjdk.org/browse/JDK-8347965
Changes to Update Timezone Data to 2025a

Clean backport.
Passed tier1 tests. Except the java/foreign/nested/TestNested.java which is failing on master as well due to preview API which is disabled by default
Passed gtests.

Results of
`make run-test TEST="jtreg:java/text/Format java/util/TimeZone sun/util/calendar sun/util/resources"`


==============================
Test summary
==============================
   TEST                                              TOTAL  PASS  FAIL ERROR   
   jtreg:test/jdk/java/text/Format                     112   112     0     0   
   jtreg:test/jdk/java/util/TimeZone                    26    26     0     0   
   jtreg:test/jdk/sun/util/calendar                      5     5     0     0   
   jtreg:test/jdk/sun/util/resources                    22    22     0     0   
==============================
TEST SUCCESS

Finished building target 'run-test' in configuration 'linux-x86_64-server-release'

-------------

Commit messages:
 - Backport caa3c78f7837b1f561740184bd8f9cb671c467eb

Changes: https://git.openjdk.org/jdk21u-dev/pull/1358/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1358&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347965
  Stats: 249 lines in 12 files changed: 150 ins; 53 del; 46 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1358.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1358/head:pull/1358

PR: https://git.openjdk.org/jdk21u-dev/pull/1358