Use ubuntu-slim runner for lightweight CI jobs #2869
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Switch 9 jobs across 8 workflow files to use the new ubuntu-slim runner (1 vCPU) instead of ubuntu-latest for cost savings. These jobs only perform lightweight operations like GitHub API calls, JSON validation, spellchecking, and git operations. Jobs updated: - pr-size-labeler: calculate-pr-size - pr-size-label-apply: apply-size-label, enforce-xl-justification - validate-proposal-naming: validate-proposal-naming - spellcheck: codespell - update-docs-website: trigger-docs-update - update-registry: update-registry - releaser: compute-build-flags - renovate-config-validation: validate-renovate-config Reference: https://github.blog/changelog/2025-10-28-1-vcpu-linux-runner-now-available-in-github-actions-in-public-preview/ 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@ ## main #2869 +/- ## ========================================== + Coverage 56.66% 56.68% +0.02% ========================================== Files 322 322 Lines 31279 31279 ========================================== + Hits 17723 17731 +8 + Misses 12038 12025 -13 - Partials 1518 1523 +5 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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The codespell action uses a Dockerfile and requires Docker which is not available on ubuntu-slim runners. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
Collaborator Author
| Note: Reverted This is a good discovery - any GitHub Action that builds a Docker container will need |
github-actions bot added size/XS 
jhrozek approved these changes Dec 3, 2025
dmjb approved these changes Dec 3, 2025
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Summary
ubuntu-slimrunner (1 vCPU) instead ofubuntu-latestfor cost savingsubuntu-slimis in public preview and designed for smaller, cheaper workloadsJobs Updated
pr-size-labeler.ymlcalculate-pr-sizepr-size-label-apply.ymlapply-size-label,enforce-xl-justificationvalidate-proposal-naming.ymlvalidate-proposal-namingspellcheck.ymlcodespellupdate-docs-website.ymltrigger-docs-updateupdate-registry.ymlupdate-registryreleaser.ymlcompute-build-flagsrenovate-config-validation.ymlvalidate-renovate-configReference
https://github.blog/changelog/2025-10-28-1-vcpu-linux-runner-now-available-in-github-actions-in-public-preview/
Test plan
🤖 Generated with Claude Code