bundle: extend cleanup coverage

[MikeMcQuaid]

• let cleanup --all opt in to all supported types
• support cleanup for mas and krew
• show readable cleanup item names for extensions

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[Copilot]

Pull request overview

This PR extends brew bundle cleanup to support a broader set of dependency types and improves the readability of cleanup output for extension-based package types. It also adds/updates tests to cover the new behavior and option surface.

Changes:

• Add brew bundle cleanup --all to opt into cleaning all supported dependency types (formulae, casks, taps, and supported extensions).
• Add cleanup support for the mas (Mac App Store) and krew extensions.
• Improve dry-run output to display human-friendly item names for extension cleanup entries.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Library/Homebrew/bundle/subcommand/cleanup.rb	Adds --all handling and prints readable extension cleanup item names in dry-run output.
Library/Homebrew/bundle/extensions/extension.rb	Introduces a default cleanup_item_name hook for extensions to customize display names.
Library/Homebrew/bundle/extensions/mac_app_store.rb	Implements cleanup_heading, cleanup item encoding/decoding, item naming, and uninstall logic for mas.
Library/Homebrew/bundle/extensions/krew.rb	Enables cleanup support for krew via cleanup_heading and an uninstall implementation.
Library/Homebrew/test/cmd/bundle/cleanup_subcommand_spec.rb	Adds a unit test ensuring cleanup --all selects all supported cleanup types.
Library/Homebrew/test/cmd/bundle_spec.rb	Verifies cleanup --all option help text.
Library/Homebrew/test/bundle/mac_app_store_spec.rb	Adds tests for mas cleanup item selection, naming, and uninstall behavior.
Library/Homebrew/test/bundle/krew_spec.rb	Adds tests for krew cleanup item selection and uninstall behavior.

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