[jdk21u-dev] RFR: Merge jdk21u:master

[Goetz Lindenmaier]

Merge build tag 21.0.3+6 from jdk21u to jdk21u-dev

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Commit messages:
 - Merge
 - 8322750: Test "api/java_awt/interactive/SystemTrayTests.html" failed because A blue ball icon is added outside of the system tray

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.org/jdk21u-dev/pull/333/files
  Stats: 92 lines in 2 files changed: 85 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/333.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/333/head:pull/333

PR: https://git.openjdk.org/jdk21u-dev/pull/333