fix(ci): use ubuntu-slim for trival jobs

[hanabi1224]

Summary of changes

https://docs.github.com/en/actions/reference/runners/github-hosted-runners#standard-github-hosted-runners-for-public-repositories

https://github.blog/changelog/2025-10-28-1-vcpu-linux-runner-now-available-in-github-actions-in-public-preview/

Changes introduced in this pull request:

Reference issue to close (if applicable)

Closes

Other information and links

Change checklist

• I have performed a self-review of my own code,
• I have made corresponding changes to the documentation. All new code adheres to the team's documentation standards,
• I have added tests that prove my fix is effective or that my feature works (if possible),
• I have made sure the CHANGELOG is up-to-date. All user-facing changes should be reflected in this document.

Outside contributions

• I have read and agree to the CONTRIBUTING document.
• I have read and agree to the AI Policy document. I understand that failure to comply with the guidelines will lead to rejection of the pull request.

Summary by CodeRabbit

• Chores
  • Updated CI/CD workflow runner environments across multiple workflows to standardized infrastructure, improving build consistency and efficiency.
  • Enhanced development infrastructure with additional linting capabilities.

[coderabbitai]

Walkthrough

This PR updates GitHub Actions workflow runner images across 14 CI workflow files from ubuntu-24.04-arm to ubuntu-slim. All existing workflow steps and logic remain unchanged with no behavioral modifications.

Changes

Cohort / File(s)	Summary
Workflow Runner Updates .github/workflows/checkpoints.yml, docker-latest-tag.yml, dockerfile-check.yml, docs-auto-update.yml, docs-required-override.yml, forest.yml, go-lint.yml, link-check.yml, lists-lint.yml, lotus-api-bump.yml, python-lint.yml, shellcheck.yml, this-month-in-forest-reminder.yml, yaml-lint.yml	Updated runs-on specification from ubuntu-24.04-arm to ubuntu-slim across all workflow jobs; no changes to workflow steps, conditions, or logic.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• chore: split linters per filetype #6450: Directly modifies the same GitHub Actions workflow files to update runner configurations.
• chore: use buildjet ubuntu in calibnet rpc check ci #5878: Modifies runner configurations in .github/workflows/forest.yml and related CI workflow files.
• fix: run codecov on buildjet #6407: Updates runs-on entries across CI workflow files with similar runner label changes.

Suggested labels

github_actions

Suggested reviewers

• LesnyRumcajs
• akaladarshi

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: switching CI workflow runners from ubuntu-24.04-arm to ubuntu-slim for trivial jobs across multiple workflow files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Merge Conflict Detection	✅ Passed	✅ No merge conflicts detected when merging into main

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

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch hm/ubuntu-slim-for-tiny-ci-jobs

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No actionable comments were generated in the recent review. 🎉

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[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In @.github/workflows/link-check.yml:
- Around line 26-29: Confirm whether the change to the GitHub Actions job
"link-check" that sets runs-on: ubuntu-slim was intentional; if it was not,
revert to the previous runner (e.g., ubuntu-latest) or a self-hosted runner and
update the workflow accordingly; if it was intentional, add a brief comment
above the "link-check" job referencing lycheeverse/lychee-action and noting that
ubuntu-slim is in public preview and has a 1 vCPU/5 GB RAM and 15-minute
execution limit, then run the workflow locally or in a branch to verify
lycheeverse/lychee-action works under the constrained preview environment and
adjust timeouts/resources or switch runner if it fails.

🧹 Nitpick comments (1)

.github/workflows/lotus-api-bump.yml (1)

12-12: Ensure jq (and curl) exist on ubuntu-slim.

Line 12 moves to ubuntu-slim, but the script relies on jq. If the slim image doesn’t ship it, the job will fail. Consider installing it explicitly.

Proposed hardening step

 steps:
- uses: actions/checkout@v6
+ - name: Install system deps+ run: |+ sudo apt-get update+ sudo apt-get install -y jq curl
- name: Update dependencies
run: |
TAG=$(curl --silent https://api.github.com/repos/filecoin-project/lotus/releases | jq -r 'first | .tag_name')

[LesnyRumcajs]

Very nice