refactor update-version.sh to handle new branching strategy

[jameslamb]

Contributes to rapidsai/build-planning#224

Updates this repo to work with the new RAPIDS branching strategy.

• various fixes in update-version.sh (based on refactored update-version.sh to handle new branching strategy cuml#7455)
• uses PEP 440 versions for Python packages (e.g. pylibraft=26.4.0, not pylibraft=24.04.0), for consistency with the rest of RAPIDS

Notes for Reviewers

How I tested this

./ci/release/update-version.sh \
  '--run-context=release' \
  '26.06.00'

# look for missed references
git grep -E '26\.[0]*4'

# check the diff
git diff

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[jameslamb]

/ok to test

[jameslamb]

Without this ^, this ends up overwriting any line containing version, like these:

https://github.com/rapidsai/cuforest/blob/c2b4c71afbd28adb92a4d00f64e9bd5bbfd56904/python/cuforest/pyproject.toml#L108-L109

[jameslamb]

Let's use the pattern every other RAPIDS project uses here, which:

• does not differentiate between from-this-repo and other RAPIDs packages
• accounts for -cu{12,13} suffixes in wheel names (this script previously missed those)
• uses the PEP 440 versions for Python packages (26.6.0, not 26.06.0)

[coderabbitai]

📝 Walkthrough

Summary by CodeRabbit

• Chores
  • Updated RAPIDS package dependencies (libraft, librmm, pylibraft, rapids-xgboost, libcuforest) from version 26.04.* to 26.4.* across conda environments and Python project files.
  • Enhanced release automation script with improved argument parsing, validation, and branch-targeting logic for main and release workflows.

Walkthrough

This pull request refactors the release version update script with improved CLI argument parsing, validation, and version normalization logic. It also applies a coordinated version bump from 26.04.* to 26.4.* across all conda environment files, central dependencies manifest, and Python project configurations.

Changes

Cohort / File(s)	Summary
CI Release Script Refactor ci/release/update-version.sh	Introduces robust CLI argument parsing for --run-context and version arguments with validation. Adds context-based branch targeting (main or release), replaces in-place file operations with write operations for RAPIDS_BRANCH and VERSION, normalizes version strings using Python packaging.version, and refactors dependency updates into a loop over a DEPENDENCIES list targeting multiple package registries.
Conda Environment Files conda/environments/all_cuda-129_arch-aarch64.yaml, all_cuda-129_arch-x86_64.yaml, all_cuda-131_arch-aarch64.yaml, all_cuda-131_arch-x86_64.yaml, clang_tidy_cuda-129_arch-x86_64.yaml, clang_tidy_cuda-131_arch-x86_64.yaml, cpp_all_cuda-129_arch-x86_64.yaml, cpp_all_cuda-131_arch-x86_64.yaml	Updates version specifiers for RAPIDS-related packages (libraft, librmm, libraft-headers, pylibraft, rapids-xgboost) from 26.04.\* to 26.4.\* while preserving lower-bound constraints.
Central Dependency and Python Configuration dependencies.yaml, python/cuforest/pyproject.toml, python/libcuforest/pyproject.toml	Updates dependency version constraints from 26.04.\* to 26.4.\* across central dependency manifest and Python project build configurations for packages including libcuforest, libraft, librmm, pylibraft, and rapids-xgboost.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~30 minutes

---

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[gforsyth]

Approving with one question

[gforsyth]

Did this get tested? Wouldn't `${NEXT_SHORT_TAG}' remain unexpanded due to the single quotes?

[jameslamb]

Yep yep I did test this.

I think it gets expanded because the outermost quotes are double quotes.

$ NEXT_SHORT_TAG="26.04"
$ NEXT_SHORT_TAG_PEP440=$(python -c "from packaging.version import Version; print(Version('${NEXT_SHORT_TAG}'))")
$ echo ${NEXT_SHORT_TAG_PEP440}
26.4

[jameslamb]

Thanks very much for the careful review!

[jameslamb]

/merge