ci: move to ubuntu latest #560

	name: Autogenerated files check

	on:
	pull_request:
	paths:
	- .github/workflows/autogenerated-files.yml
	- README.md
	- completions/**
	- docs/Manpage.md
	- manpages/brew.1

	permissions:
	contents: read

	env:
	HOMEBREW_DEVELOPER: 1
	HOMEBREW_NO_AUTO_UPDATE: 1

	defaults:
	run:
	shell: bash -xeuo pipefail {0}

	jobs:
	autogenerated:
	runs-on: ubuntu-latest
	if: github.repository == 'Homebrew/brew'
	steps:
	- name: Set up Homebrew
	id: set-up-homebrew
	uses: Homebrew/actions/setup-homebrew@master
	with:
	core: false
	cask: false
	test-bot: true

	- name: Cache Bundler RubyGems
	uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
	with:
	path: ${{ steps.set-up-homebrew.outputs.gems-path }}
	key: ${{ runner.os }}-rubygems-${{ steps.set-up-homebrew.outputs.gems-hash }}
	restore-keys: ${{ runner.os }}-rubygems-

	- name: Check for changes to autogenerated files
	id: check
	run: \|
	if brew generate-man-completions
	then
	echo "This PR modifies autogenerated files!" >&2
	echo "Please ensure their source files are updated and then run the following:
	brew generate-man-completions" >&2
	exit 1
	else
	exit 0
	fi

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