RFR: Merge openjdk/jdk21u:master [v2]

[William Kemper]

> Merges tag jdk-21.0.7+3

William Kemper 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.

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Changes:
  - all: https://git.openjdk.org/shenandoah-jdk21u/pull/156/files
  - new: https://git.openjdk.org/shenandoah-jdk21u/pull/156/files/b7d92cd0..b7d92cd0

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=156&range=01
 - incr: https://webrevs.openjdk.org/?repo=shenandoah-jdk21u&pr=156&range=00-01

  Stats: 0 lines in 0 files changed: 0 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/shenandoah-jdk21u/pull/156.diff
  Fetch: git fetch https://git.openjdk.org/shenandoah-jdk21u.git pull/156/head:pull/156

PR: https://git.openjdk.org/shenandoah-jdk21u/pull/156