RFR: 8437: JDP Tests are failing on macOS-15 Github Actions runner due to local network privacy restrictions

[Aymane Harmaz]

Skipped the execution of JDP tests requiring multicast which is not supported on macOS-15 runner

This was the result of moving macOS-latest from 14 to 15

Similar issues are mentioned in the following links : 
https://github.com/orgs/community/discussions/170669
https://github.com/actions/runner-images/issues/10924

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Commit messages:
 - 8437: JDP Tests are failing on macOS-15 Github Actions runner due to local network privacy restrictions

Changes: https://git.openjdk.org/jmc/pull/672/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=672&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8437
  Stats: 20 lines in 1 file changed: 20 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jmc/pull/672.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/672/head:pull/672

PR: https://git.openjdk.org/jmc/pull/672