Update RSCI with hubcast support

[adrienbernede]

Add the .github/hubcast.yml file to configure hubcast.

Update Radiuss Shared CI with hubcast related tweaks.

Testing changes for RADIUSS Shared CI 2026.6.0 release.

Optimize alloc on matrix.

Note:

May be merged before lc-hubcast is turned on.

TODO:

• Activate lc-hubcast (optional)
• release radiuss-shared-ci 2026.6.0
• why is performance pipeline report failing ?

[adrienbernede]

@tdrwenski I think we already saw that failure in the performance pipeline report job. Do you remember the fix?

[tdrwenski]

@tdrwenski I think we already saw that failure in the performance pipeline report job. Do you remember the fix?

What error did you see? I see "The system is down for maintenance." in just one of the performance jobs, so I think you should try re-running (I tried but I am not authorized).

[rhornung67]

@tdrwenski I think we already saw that failure in the performance pipeline report job. Do you remember the fix?

What error did you see? I see "The system is down for maintenance." in just one of the performance jobs, so I think you should try re-running (I tried but I am not authorized).

Some machines were down for maintenance yesterday. I restarted the jobs.

[tdrwenski]

Now I see the error you probably meant-- "Must have admin rights to Repository." I think I have seen that, it sounds like the token I think? Is the GITHUB_WORKFLOW_TOKEN unchanged? I think that needs repo and workflow access.

[adrienbernede]

I renewed the token recently (it had expired). This message puts me in doubt : were we using brad-iuss to generate the token ? Or one of our personal accounts ? I just need to take the time to test both options.