RFR: 8343129: Disable unstable check of ThreadsListHandle.sanity_vm ThreadList values [v2]

[SendaoYan]

> Hi all,
> We have observed `ThreadsListHandle.sanity_vm failed with unequal ThreadList values` several times on linux-x64 and linux-aarch64, by jdk17u/jdk21u/jdk24 etc.
> Before the root cause of the test failure has been fixed, should we disable the unstable check of ThreadsListHandle.sanity_vm ThreadList values, to make less of CI noisy.
> 
> Additional testing:
> 
> - [x] release build and run the `gtest/GTestWrapper.java` on linux-x64
> - [x] fastdebug build and run the `gtest/GTestWrapper.java` on linux-x64
> - [x] slowdebug build and run the `gtest/GTestWrapper.java` on linux-x64

SendaoYan has updated the pull request incrementally with one additional commit since the last revision:

  fix until typo bugs

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/21734/files
  - new: https://git.openjdk.org/jdk/pull/21734/files/81b8c916..ce815db4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21734&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21734&range=00-01

  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk/pull/21734.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21734/head:pull/21734

PR: https://git.openjdk.org/jdk/pull/21734