Revert "Restructure .gitignore gem handling" · Homebrew/brew@b57274f

ubuntu-latest pipelines will use ubuntu-24.04 soon. For more details, see https://github.com/actions/runner-images/issues/10636

UnpackStrategy::Subversion #extract Skipped: Subversion is not installed.

UnpackStrategy::Subversion is correctly detected Skipped: Subversion is not installed.

UnpackStrategy::Subversion when the directory name contains an '@' symbol #extract Skipped: Subversion is not installed.

RuboCop::Cop::FormulaAudit::UsesFromMacos mandoc formula exists Skipped: Requires homebrew/core to be tapped.

RuboCop::Cop::FormulaAudit::UsesFromMacos git formula exists Skipped: Requires homebrew/core to be tapped.

RuboCop::Cop::FormulaAudit::UsesFromMacos zsh formula exists Skipped: Requires homebrew/core to be tapped.

RuboCop::Cop::FormulaAudit::UsesFromMacos groff formula exists Skipped: Requires homebrew/core to be tapped.

RuboCop::Cop::FormulaAudit::UsesFromMacos python formula exists Skipped: Requires homebrew/core to be tapped.

RuboCop::Cop::FormulaAudit::UsesFromMacos php formula exists Skipped: Requires homebrew/core to be tapped.

RuboCop::Cop::FormulaAudit::UsesFromMacos gzip formula exists Skipped: Requires homebrew/core to be tapped.

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