[jdk21u-dev] RFR: 8343129: Disable unstable check of ThreadsListHandle.sanity_vm ThreadList values

[SendaoYan]

Hi all,

This pull request contains a backport of commit [59fcfae6](https://github.com/openjdk/jdk/commit/59fcfae63090f6659a94a9e3dd0705739ec1b074) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by SendaoYan on 19 Nov 2024 and was reviewed by David Holmes.

Thanks!

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Commit messages:
 - Backport 59fcfae63090f6659a94a9e3dd0705739ec1b074

Changes: https://git.openjdk.org/jdk21u-dev/pull/1223/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1223&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8343129
  Stats: 20 lines in 1 file changed: 10 ins; 0 del; 10 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1223.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1223/head:pull/1223

PR: https://git.openjdk.org/jdk21u-dev/pull/1223