CI failure: Homebrew/actions@master no longer resolves, breaking Smoke Test CI and 3 other workflows

[claude]

Summary

The Smoke Test CI Linters job fails at the Set up job step before any linting runs:

##[error]Unable to resolve action `homebrew/actions@master`, unable to find version `master`

• Workflow: Smoke Test CI (.github/workflows/smoke.yml)
• Failing run: https://github.com/laurigates/dotfiles/actions/runs/35128693031
• First observed on branch docs/claude-rules-onboarding-distil (PR feat(claude-rules): distil three tool and workflow rules from the FVH onboarding sweep #428), but the cause is not related to that branch's changes.

Root cause

The job references the Homebrew setup action by a floating branch ref:

uses: Homebrew/actions/setup-homebrew@master

GitHub can no longer resolve the master ref of Homebrew/actions (the upstream repo's default branch is now main), so action resolution fails during Set up job — before any repo code executes. This is an external dependency change, not a regression introduced by any PR here, and it affects every branch (including main).

Blast radius

The @master ref appears in 5 places across 4 workflows, all of which will fail the same way:

• .github/workflows/smoke.yml:31
• .github/workflows/smoke.yml:57
• .github/workflows/sbom.yml:30
• .github/workflows/coverage.yml:29
• .github/workflows/claude.yml:71

Suggested fix

Update all five references. Because this touches CI shared by the whole repo, it should land in its own PR against main, not on the unrelated docs branch:

uses: Homebrew/actions/setup-homebrew@main

Preferably pin to a released tag or commit SHA instead of a floating branch to avoid a repeat of this class of breakage (and let Renovate track it). Verify against upstream (https://github.com/Homebrew/actions) before merging.

Why not auto-fixed

Per the auto-fix guidance this is a failure in a workflow unrelated to the branch's code changes, driven by an external dependency change, and the correct fix spans multiple shared workflow files that belong on main rather than a docs-only PR.

Suggested labels: bug, ci-failure

[laurigates]

Duplicate of #414. Fixed as suggested here, in its own PR against main: #430 (43fd03d) changes all five Homebrew/actions/setup-homebrew@master references to @main (smoke.yml Linters and Build jobs, coverage.yml, sbom.yml, claude.yml). Setup Homebrew passes on main at be2fd3b: https://github.com/laurigates/dotfiles/actions/runs/35738657555.

The release-SHA pin is not done; it is tracked in #416. Renovate has not produced it: #373 lists Homebrew/actions under "Pin dependencies", but no renovate/github-actions branch or PR has been created.