Bump actions/checkout from 2 to 4 #2

	name: CI
	on:
	push:
	jobs:
	build:
	runs-on: ubuntu-latest
	services:
	postgres:
	image: postgres
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	ports:
	- 5432:5432
	env:
	CALCULATOR_CONSTRUCTOR_DATABASE_USERNAME: postgres
	CALCULATOR_CONSTRUCTOR_DATABASE_PASSWORD: postgres
	RAILS_ENV: test
	steps:
	- uses: actions/checkout@v4
	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: 3.2.2
	bundler-cache: true
	cache-version: 1
	- name: Install PostgreSQL client
	run: \|
	sudo apt-get -yqq install libpq-dev
	- name: Build App
	run: \|
	cp config/database.yml.example config/database.yml
	bundle exec rake db:create
	bundle exec rake db:migrate
	- name: Run rspec
	run: bundle exec rspec

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