JustJ riscv64 node offline

Summary

It's like #5199 (closed)

I tried to launch

https://ci.eclipse.org/justj/computer/riscv%2Dbuild2/log

but that doesn't work

So it shows as failing to start:

(Summarize the bug encountered concisely)

Priority

• Urgent
• High
• Medium
• Low

Severity

• Blocker
• Major
• Normal
• Low

Impact

Can't build a new Java 24, but that's not a big deal. It would be nice if this were more generally available when needed...