RFR: 8342979: Start of release updates for JDK 25 [v4]

[Pavel Rappo]

> Prepare for JDK 25.

Pavel Rappo has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:

 - Update --release 24 symbol information for JDK 24 build 22
   
   The macOS/AArch64 build 22 was taken from https://jdk.java.net/24/
 - Merge branch 'master' into 8342979
 - Update --release 24 symbol information for JDK 24 build 21
   
   The macOS/AArch64 build 21 was taken from https://jdk.java.net/24/
 - Add forgotten .jcheck/conf
 - Initial commit

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/21763/files
  - new: https://git.openjdk.org/jdk/pull/21763/files/1286fcca..9a0553bb

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21763&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21763&range=02-03

  Stats: 49274 lines in 836 files changed: 5371 ins; 40901 del; 3002 mod
  Patch: https://git.openjdk.org/jdk/pull/21763.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21763/head:pull/21763

PR: https://git.openjdk.org/jdk/pull/21763