unixPB: Adjust boot JDKs to current required ones. Remove JDK11

[sxa]

Based on the current set of supported java versions, this ensures that a suitable GA boot JDK is available on each system (18 and 19) so it doesn't have to be downloaded at build time.

Part of me also wants to remove JDK 8 and 11 as well but I'm not feeling that brave ... yet. Will be dependent on https://github.com/adoptium/infrastructure/issues/2763 being complete and moving all systems to JDK17.

Signed-off-by: Stewart X Addison [email protected]

Checklist

• [x] commit message has one of the standard prefixes
• [ ] faq.md updated if appropriate
• [ ] other documentation is changed or added (if applicable)
• [x] playbook changes run through VPC or QPC (if you have access) https://ci.adoptopenjdk.net/view/Tooling/job/VagrantPlaybookCheck/1565/ (Run without the change is at 1564 for comparison)
• [ ] VPC/QPC not applicable for this PR
• [ ] for inventory.yml changes, bastillion/nagios/jenkins updated accordingly