Update GitHub Action hashintel/.github to 874b6c3

[hash-dependencies]

This PR contains the following updates:

Package	Type	Update	Change
hashintel/.github (changelog)	action	digest	b7a5d7f → 874b6c3

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Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • "before 4am every weekday,every weekend"

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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This PR has been generated by Mend Renovate.

[cursor]

PR Summary

Low Risk
Only workflow pin updates with no app logic changes; risk depends on behavior in the external hashintel/.github commit, which is typical for shared CI bumps.

Overview
Bumps the pinned hashintel/.github reusable workflow refs from b7a5d7f to 874b6c3 across CI entrypoints.

Housekeeping (housekeeping-dependencies.yml) now runs the updated shared Renovate/dependency workflow. Preflight jobs for dependency checks, PR title validation, and todo-comment scanning (preflight-dependencies.yml, preflight-pr-title.yml, preflight-todo-comments.yml) use the same new digest. Permissions, inputs, and secrets in these callers are unchanged.

^{Reviewed by Cursor Bugbot for commit 9fae7b6. Bugbot is set up for automated code reviews on this repo. Configure here.}