RFR: 8311990: Two JDI tests may interfere with each other

[Alex Menkov]

"Attach fails" scenarios (debuggee starts listening and debugger is expected to fail trying to attach) sometimes interfere with other JDI tests (so JdwpNetProps.java test or other JDI test or both fail).
The fix disables the scenarios to remove noise in the CI.

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Commit messages:
 - disable AttachFailed testcases

Changes: https://git.openjdk.org/jdk/pull/20362/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20362&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8311990
  Stats: 13 lines in 1 file changed: 12 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/20362.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20362/head:pull/20362

PR: https://git.openjdk.org/jdk/pull/20362