Use RMM's pached CCCL (3.0.x)

[jakirkham]

Backports to XGBoost 3.0.x PR: #11351

Make sure to search for RMM if it will be used. This should pick up the patched CCCL from RMM.

If RMM is not being used and this is a CUDA build, search for CCCL explicitly.

[jakirkham]

cc @trivialfis

[trivialfis]

Will merge once the CI is green.

[jakirkham]

Thanks Jiaming! 🙏

Sounds good

---

For the one Windows failure am just seeing this:

Is there somewhere we should be looking for logs?

[jakirkham]

Most CI runs pass. Seeing a couple CI failures when running the test suite. However that is well after the change here. So think they may not be related

Edit - Note the RMM builds do pass and pick up RMM's CCCL:

-- Found Thrust: /opt/rmm/lib64/rapids/cmake/thrust/thrust-config.cmake (found suitable exact version "2.5.0.0")
-- Found CCCL: /opt/rmm/lib64/rapids/cmake/cccl/cccl-config.cmake (found version "2.5.0.0")
-- Found nvtx3: /opt/rmm/lib64/cmake/nvtx3/nvtx3-config.cmake (found version "3.1.0")
-- Found rmm: /opt/rmm/lib64/cmake/rmm/rmm-config.cmake (found version "24.12.0")