[jdk21u-dev] RFR: 8340387: Update OS detection code to recognize Windows Server 2025

[Matthias Baesken]

8340387: Update OS detection code to recognize Windows Server 2025

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Commit messages:
 - Backport 34cddfbedd20d5804cab8044fbc402564e98eb9c

Changes: https://git.openjdk.org/jdk21u-dev/pull/1006/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1006&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340387
  Stats: 11 lines in 2 files changed: 8 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1006.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1006/head:pull/1006

PR: https://git.openjdk.org/jdk21u-dev/pull/1006