Update to clang 20.1.8

[bdice]

Description

Contributes to rapidsai/build-planning#267

This PR updates the clang version to 20.1.8.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: aa79d45f-7fa6-4b8b-8fb4-1dcb70f7ea1c

📥 Commits

Reviewing files that changed from the base of the PR and between f5842df and e92ca1d.

📒 Files selected for processing (1)

• .pre-commit-config.yaml

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📝 Walkthrough

Walkthrough

Updated the clang-format pre-commit hook version from v20.1.4 to v20.1.8 in the pre-commit configuration file. This is a patch version update to the formatter used for C/C++ source and header files.

Changes

Cohort / File(s)	Summary
Pre-commit Configuration .pre-commit-config.yaml	Bumped mirrors-clang-format hook version from v20.1.4 to v20.1.8.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'Update to clang 20.1.8' directly and clearly describes the main change in the pull request, which updates the clang-format version from v20.1.4 to v20.1.8.
Description check	✅ Passed	The description is directly related to the changeset, explaining that it updates the clang version to 20.1.8 and references the associated issue.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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[bdice]

/merge