[lilliput-jdk21u:lilliput] RFR: Merge jdk21u:jdk-21.0.4+6

[Roman Kennke]

Merging jdk-21.0.4+6 from upstream jdk21u.

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Commit messages:
 - Merge tag 'jdk-21.0.4+6' into merge-jdk-21.0.4+6
 - 8334441: Mark tests in jdk_security_infra group as manual
 - 8320692: Null icon returned for .exe without custom icon
 - 8330275: Crash in XMark::follow_array
 - 8329862: libjli GetApplicationHome cleanups and enhance jli tracing
 - 8323635: Test gc/g1/TestHumongousAllocConcurrentStart.java fails with -XX:TieredStopAtLevel=3
 - 8295111: dpkg appears to have problems resolving symbolically linked native libraries
 - 8331031: unify os::dont_yield and os::naked_yield across Posix platforms
 - 8329223: Parallel: Parallel GC resizes heap even if -Xms = -Xmx
 - 8330464: hserr generic events - add entry for the before_exit calls
 - ... and 298 more: https://git.openjdk.org/lilliput-jdk21u/compare/20dbbeaf...25ec8454

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lilliput: https://webrevs.openjdk.org/?repo=lilliput-jdk21u&pr=34&range=00.0
 - jdk21u:jdk-21.0.4+6: https://webrevs.openjdk.org/?repo=lilliput-jdk21u&pr=34&range=00.1

Changes: https://git.openjdk.org/lilliput-jdk21u/pull/34/files
  Stats: 40020 lines in 1195 files changed: 21985 ins; 10206 del; 7829 mod
  Patch: https://git.openjdk.org/lilliput-jdk21u/pull/34.diff
  Fetch: git fetch https://git.openjdk.org/lilliput-jdk21u.git pull/34/head:pull/34

PR: https://git.openjdk.org/lilliput-jdk21u/pull/34