Update actions/setup-node action to v4 #9

	name: Continuous Integration

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

	permissions:
	contents: read

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3

	- name: Validate composer.json and composer.lock
	run: composer validate --strict

	- name: Cache Composer packages
	id: composer-cache
	uses: actions/cache@v3
	with:
	path: vendor
	key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}
	restore-keys: \|
	${{ runner.os }}-php-

	- name: Create the data/email directory
	run: \|
	mkdir ./data ./data/emails

	- name: Install dependencies with latest
	run: composer install --prefer-dist

	- name: Run test suite
	run: composer run-script test

	- name: Update dependencies with --prefer-lowest
	run: composer update --prefer-lowest

	- name: Run test suite
	run: composer run-script test

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