Add rebuild step RuboCop checks

[MikeMcQuaid]

• defer autocorrection until rebuild actions are in stable releases
• keep cask audits limited to cask-supported step methods
• catch exact formula cache rebuild patterns conservatively

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• Have you checked to ensure there aren't other open Pull Requests for the same change?
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• AI was used to generate or assist with generating this PR.

OpenAI Codex 5.5 xhigh with local review and testing.

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[github-code-quality]

Code Coverage Overview

Languages: Ruby

Ruby / code-coverage/simplecov

The overall coverage in the install-step-rebuild... branch remains at 78%, unchanged from the install-step-rebuild... branch.

Show a code coverage summary of the most impacted files.

File	install-step-rebuild... 53d2800	install-step-rebuild... b56e9b5	+/-
test_bot.rb	93%	88%	-5%
services/system.rb	85%	81%	-4%
services/cli.rb	63%	61%	-2%
rubocops/shared...steps_helper.rb	97%	97%	0%
install_steps.rb	92%	94%	+2%
services/system/systemctl.rb	87%	93%	+6%

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_{Updated June 02, 2026 16:53 UTC
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