Use stderr in rakefile #3

	name: CI
	on:
	push:
	branches: master
	pull_request:
	permissions:
	contents: read

	jobs:
	tests:
	runs-on: ubuntu-latest
	steps:
	- name: Set up Homebrew
	id: set-up-homebrew
	uses: Homebrew/actions/setup-homebrew@master
	with:
	core: false
	cask: false
	test-bot: false

	- name: Cache Homebrew Bundler RubyGems
	id: cache
	uses: actions/cache@v3
	with:
	path: ${{ steps.set-up-homebrew.outputs.gems-path }}
	key: ubuntu-latest-rubygems-${{ steps.set-up-homebrew.outputs.gems-hash }}
	restore-keys: ubuntu-latest-rubygems-

	- name: Install Homebrew Bundler RubyGems
	if: steps.cache.outputs.cache-hit != 'true'
	run: brew install-bundler-gems

	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: '2.7'

	- name: Lint Ruby code
	run: rake lint:check

	- name: Check if readme is outdated
	run: rake readme:outdated

	- name: Check for missing integration tests
	run: rake missing-tests

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