RFR: Merge openjdk/jdk21u:master

[William Kemper]

Merges tag jdk-21.0.11+3

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Commit messages:
 - 8369282: Distrust TLS server certificates anchored by Chunghwa ePKI Root CA
 - 8339238: Update to use jtreg 7.5.1
 - 8361530: Test javax/swing/GraphicsConfigNotifier/StalePreferredSize.java timed out
 - 8361613: System.console() should only be available for interactive terminal
 - 8371559: Intermittent timeouts in test javax/net/ssl/Stapling/HttpsUrlConnClient.java
 - 8359827: Test runtime/Thread/ThreadCountLimit.java need loop increasing the limit
 - 8374056: RISC-V: Fix argument passing for the RiscvFlushIcache::flush
 - 8373476: (tz) Update Timezone Data to 2025c
 - 8318302: ThreadCountLimit.java failed with "Native memory allocation (mprotect) failed to protect 16384 bytes for memory to guard stack pages"
 - 8371103: vmTestbase/nsk/jvmti/scenarios/events/EM02/em02t006/TestDescription.java failing
 - ... and 113 more: https://git.openjdk.org/shenandoah-jdk21u/compare/2e594b6c...cabfc7ab

The webrev contains the conflicts with master:
 - merge conflicts: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=235&range=00.conflicts

Changes: https://git.openjdk.org/shenandoah-jdk21u/pull/235/files
  Stats: 16071 lines in 422 files changed: 8494 ins; 4155 del; 3422 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/235.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/235/head:pull/235

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/235