Add Ruby 4 to CI matrix #1693

	name: CI

	on:
	push:
	branches:
	- main
	pull_request:

	permissions:
	contents: read

	jobs:
	tests:
	strategy:
	matrix:
	platform: ["ubuntu-latest", "macos-latest"]
	ruby: ["3.2", "3.3", "3.4", "4.0"]
	runs-on: ${{ matrix.platform }}
	steps:
	- name: Set up Git repository
	uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
	with:
	persist-credentials: false

	- name: Set up Ruby
	uses: ruby/setup-ruby@8d27f39a5e7ad39aebbcbd1324f7af020229645c # v1.287.0
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true

	- name: Run tests
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
	run: bundle exec rake

	- name: Run RuboCop
	run: bundle exec rubocop -D lib/

	- name: Upload coverage results
	uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # v5.5.2
	with:
	files: coverage/coverage.xml
	disable_search: true
	token: ${{ secrets.CODECOV_TOKEN }}

	check:
	needs: tests
	runs-on: ubuntu-latest
	steps:
	- uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
	with:
	jobs: ${{ toJSON(needs) }}

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