remove 'cuda-python' dependency, test against oldest numba and numpy

[jameslamb]

Description

Contributes to rapidsai/build-planning#285

Removes this project's cuda-python dependency, which appears to be unnecessary:

$ git grep -E 'from cuda.*import|import cuda'
ci/utils/notebook_list.py:from numba import cuda
python/cuopt/cuopt/distance_engine/waypoint_matrix_wrapper.pyx:from numba import cuda
python/cuopt/cuopt/linear_programming/solver/solver_wrapper.pyx:from numba import cuda
python/cuopt/cuopt/routing/utils_wrapper.pyx:from numba import cuda
python/cuopt/cuopt/routing/vehicle_routing_wrapper.pyx:from numba import cuda

While doing that, also adds some use of the "test against oldest versions of dependencies" stuff originally set up in rapidsai/build-planning#81. That's used in a few RAPIDS repos and has been valuable in detecting when a floor needs to be bumped or compatibility workarounds need to be put in place. Proposing adding numpy and numba-cuda there for now.

Checklist

• I am familiar with the Contributing Guidelines.
• Testing
  • New or existing tests cover these changes
  • Added tests
• Documentation
  • The documentation is up to date with these changes

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[jameslamb]

/ok to test

[github-actions]

CI Test Summary

✅ All 31 test job(s) passed.

[jameslamb]

@ramakrishnap-nv or @tmckayus could you help investigate the CI failures?

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

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Run ID: f83b4afd-7712-4ed8-ac17-7d6c653316d2

📥 Commits

Reviewing files that changed from the base of the PR and between 5d4f999 and 2eaf4da.

📒 Files selected for processing (8)

• ci/test_python.sh
• conda/environments/all_cuda-129_arch-aarch64.yaml
• conda/environments/all_cuda-129_arch-x86_64.yaml
• conda/environments/all_cuda-133_arch-aarch64.yaml
• conda/environments/all_cuda-133_arch-x86_64.yaml
• conda/recipes/cuopt/recipe.yaml
• dependencies.yaml
• python/cuopt/pyproject.toml

💤 Files with no reviewable changes (6)

• conda/environments/all_cuda-133_arch-x86_64.yaml
• conda/environments/all_cuda-129_arch-x86_64.yaml
• python/cuopt/pyproject.toml
• conda/environments/all_cuda-129_arch-aarch64.yaml
• conda/environments/all_cuda-133_arch-aarch64.yaml
• conda/recipes/cuopt/recipe.yaml

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📝 Walkthrough

Walkthrough

This PR removes explicit cuda-python version pins from conda environment files, the cuopt conda recipe, and pyproject.toml. It also updates dependencies.yaml to add an "oldest" dependencies selector matrix pinning numba-cuda and numpy while removing CUDA-version-specific cuda-python selectors, and extends the CI test script's matrix generation with a dependencies dimension.

Changes

Dependency Pinning and CI Matrix Updates

Layer / File(s)	Summary
Dependency selector updates dependencies.yaml	Adds a "specific" selector block for test_python_common pinning numba-cuda and numpy under an "oldest" dependencies matrix, and removes prior CUDA-version-based cuda-python selector entries.
Conda environment and recipe cuda-python removal conda/environments/all_cuda-129_arch-aarch64.yaml, conda/environments/all_cuda-129_arch-x86_64.yaml, conda/environments/all_cuda-133_arch-aarch64.yaml, conda/environments/all_cuda-133_arch-x86_64.yaml, conda/recipes/cuopt/recipe.yaml	Removes cuda-python version pins from generated conda environment YAMLs and removes both cuda_major-conditional cuda-python requirement blocks from the cuopt recipe.
Package dependency and CI matrix updates python/cuopt/pyproject.toml, ci/test_python.sh	Drops the cuda-python>=13.0.1,<14.0 entry from pyproject.toml dependencies and adds dependencies=${RAPIDS_DEPENDENCIES} to the CI script's dependency-file-generator --matrix argument.

Estimated code review effort: 2 (Simple) | ~10 minutes

Related PRs: None identified.

Suggested labels: dependencies, ci, conda

Suggested reviewers: None identified.

🐰 A pin removed, a matrix grown,
cuda-python's old constraint has flown.
Oldest numbers now hold tight,
while CI's grid gets one more site.
Hop along, the deps align!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	Clearly summarizes removing cuda-python and adding oldest-version testing.
Description check	✅ Passed	The description is directly about removing cuda-python and adding oldest dependency tests.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[ramakrishnap-nv]

@ramakrishnap-nv or @tmckayus could you help investigate the CI failures?

Think this is mostly stemming from xdist that I added recently, I have reverted it in this PR, please merge with main once this PR is merged #1519

[jameslamb]

Excellent looks like that fixed it, thanks @ramakrishnap-nv !

[jameslamb]

/merge