Add buildkitd version logging to action output

[adityamaru]

Add buildkitd version logging to action output

Summary

Added logging to display the buildkitd version after the daemon starts successfully. This provides visibility into which BuildKit version is being used during the "Starting Blacksmith builder" phase of the action.

The version is extracted from buildkitd --version output and logged using core.info(). If version detection fails for any reason, it falls back to debug logging without breaking the action.

Also includes a packageManager field addition to package.json (auto-generated by corepack) to lock the pnpm version to 8.15.9.

Review & Testing Checklist for Human

• Run the action in a real workflow and verify that the buildkitd version appears in the logs under "Starting Blacksmith builder" (this is the most critical test - I cannot test this locally)
• Verify the version output format is clear and useful (e.g., "buildkitd version: v0.12.5")
• Confirm the action still works correctly even if version detection fails (should only log to debug, not fail the action)
• Review whether the packageManager lock in package.json is desired (generally good practice for consistency)

Test Plan

1. Trigger a workflow that uses this action
2. Check the action logs under "Starting Blacksmith builder"
3. Verify you see a line like: buildkitd version: X.Y.Z
4. Optionally: Test with a custom buildkit-version input to ensure it logs the correct version

Notes

• The version logging is wrapped in try-catch and only logs to debug on failure, so it won't break the action if buildkitd --version fails
• The regex pattern /buildkit\s+v?(\S+)/i extracts the version number, with a fallback to raw output if the format is unexpected
• Session: https://app.devin.ai/sessions/6b3549b728a74921a993268195e1f96a
• Requested by: maru@blacksmith.sh (@adityamaru)

---

Note

Update CI workflows and refresh dist build artifacts (including source map).

• CI/CD:
  • Update workflows in .github/workflows/ (build.yml, lint.yml, release.yml, test-action.yml, verify-build.yml).
• Build Artifacts:
  • Refresh dist/index.js and add/update dist/index.js.map.

^{Written by Cursor Bugbot for commit 4a70932. This will update automatically on new commits. Configure here.}

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