bump-packages: support tap-qualified package names

[chenrui333]

Summary:

• Auto-enable --full-name for formula and cask names containing /.
• Keep full-name: true as an explicit override for short names.
• Update docs and tests for both command paths.

[Copilot]

Pull request overview

Adds support to the bump-packages composite action for passing fully-qualified package names through to brew bump via a new full-name input, with documentation and test coverage to ensure both formulae and casks paths behave as expected.

Changes:

• Introduces a new full-name action input (default false).
• Updates both “Bump formulae” and “Bump casks” steps to conditionally add --full-name to brew bump when enabled.
• Documents the new input in the README usage snippet and adds tests covering the --full-name argument for both code paths.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
bump-packages/README.md	Documents the new full-name input in the example workflow usage.
bump-packages/action.yml	Adds full-name input and conditionally appends --full-name to the brew bump invocation for formulae and casks.
bump-packages/action.test.mts	Adds unit tests validating --full-name is passed for fully-qualified formulae and casks.

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[carlocab]

Looks fine; optional nit.

[MikeMcQuaid]

Looks good! Main question: what would be downsides of making full-name the default behaviour or at least automatic if e.g. a name contains /?

[chenrui333]

Yeah, I think we turn on the auto detection behavior, just pushed a change to auto-enable --full-name when package names contain /, which should save action config while preserving existing short-name behavior.

[MikeMcQuaid]

Thanks! One more tweak

[MikeMcQuaid]

If this is now auto-detected: do we need this option/input at all?