Use GCC 13 in CUDA 12 conda builds.

[bdice]

Description

conda-forge is using GCC 13 for CUDA 12 builds. This PR updates CUDA 12 conda builds to use GCC 13, for alignment.

These PRs should be merged in a specific order, see rapidsai/build-planning#129 for details.

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[jameslamb]

check-nightly-ci is failing like this:

Traceback (most recent call last):
  File "/home/runner/work/ucxx/ucxx/shared-actions/check_nightly_success/check-nightly-success/check.py", line 106, in <module>
    main(
  File "/home/runner/work/ucxx/ucxx/shared-actions/check_nightly_success/check-nightly-success/check.py", line 66, in main
    latest_branch = max(latest_success)
                    ^^^^^^^^^^^^^^^^^^^
ValueError: max() iterable argument is empty

(build link)

I'll investigate that right now.

[jameslamb]

I think this will fix the check-nightly-ci issue: rapidsai/shared-actions#38

[jakirkham]

Looks like the rest of the CI jobs were waiting. Since the aforementioned PR was merged, went ahead and restarted those CI jobs

[jakirkham]

One job had an error as it was unable to checkout the PR. Guessing a network error. So restarted it

[jakirkham]

Looks like CI is now passing! 🥳

[bdice]

/merge