Add Ruby 3.3 to CI and bump actions/checkout to v4 #22

	name: CI

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	permissions:
	contents: read

	jobs:
	tests:
	runs-on: ubuntu-latest
	services:
	postgres:
	image: postgres:latest
	ports: ["5432:5432"]
	options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
	env:
	POSTGRES_PASSWORD: postgres
	strategy:
	fail-fast: false
	matrix:
	ruby: [ "1.9.3", "2.0.0", 2.1, 2.4, 2.5, 2.6, 2.7, "3.0", 3.1, 3.2, 3.3]
	name: ${{ matrix.ruby }}
	env:
	BUNDLE_GEMFILE: .ci.gemfile
	steps:
	- uses: actions/checkout@v4
	- uses: actions/checkout@v4
	with:
	repository: jeremyevans/sequel
	path: sequel
	- run: sudo apt-get -yqq install libpq-dev
	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: ${{ matrix.ruby }}
	bundler-cache: true
	- run: bundle exec rake spec_ci

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