extend brew extract to support casks, sharding, --unversioned, and livecheck/deprecation handling#5

Copilot wants to merge 2 commits into

dev-cmd/extract-add-cask-supporttoobuntu/brew:dev-cmd/extract-add-cask-supportfrom

copilot/extend-brew-extract-caskstoobuntu/brew:copilot/extend-brew-extract-casksCopy head branch name to clipboard