RFR: 8162: Update OptionsCheckRule to JDK21 [v4]

[Henrik Dafgård]

> Brings the OptionsCheckRule up to date with the state of JVM flags as of JDK 21.

Henrik Dafgård has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 24 commits:

 - Merge branch 'master' into JMC-8162
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - Merge remote-tracking branch 'upstream/master'
 - ... and 14 more: https://git.openjdk.org/jmc/compare/793e8263...b0895fc2

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Changes: https://git.openjdk.org/jmc/pull/542/files
 Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=542&range=03
  Stats: 66 lines in 3 files changed: 53 ins; 0 del; 13 mod
  Patch: https://git.openjdk.org/jmc/pull/542.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/542/head:pull/542

PR: https://git.openjdk.org/jmc/pull/542