fix: use Homebrew tap app bot identity

[robjtede]

Makes generated tap commits use the x52-homebrew-tap-updater GitHub App bot identity.

The previous release-bot noreply address associates commits with an unrelated ordinary GitHub user. The new address uses the App bot numeric user ID and login, which GitHub resolves to the App bot.

Adds fixture assertions for both Git author settings.

Validated with nix develop -c just check.

Summary by CodeRabbit

• Chores
  • Updated Homebrew tap releases to use the automated bot identity when creating commits.
  • Added validation to ensure the tap checkout has the expected Git author information configured before committing.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: b744b4cb-2ec9-4511-a7b3-3458d7b35d1e

📥 Commits

Reviewing files that changed from the base of the PR and between 4253f74 and c686581.

📒 Files selected for processing (2)

• release-tools/test.bash
• release-tools/update-homebrew-tap.py

Included review availability: Your plan includes up to 1 review per rolling hour; 0 remain after this review.

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📝 Walkthrough

Walkthrough

The Homebrew tap updater now commits with a tap-specific bot identity. The test verifies the configured Git user name and noreply email.

Changes

Homebrew tap bot identity

Layer / File(s)	Summary
Configure and verify tap bot identity release-tools/update-homebrew-tap.py, release-tools/test.bash	The updater defines the Homebrew tap bot login and numeric ID, configures Git with the bot name and ID-based noreply email, and tests both local settings.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to c6865

This localized change makes generated Homebrew tap commits use the intended GitHub App bot identity and adds assertions for both author settings. No actionable merge-blocking risk remains beyond normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change to use the Homebrew tap app bot identity.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/homebrew-tap-bot-identity

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