Update dependency automattic/jetpack-codesniffer to v3 #165

	name: Unit Tests

	on: pull_request

	jobs:
	test:
	name: PHPUnit (${{ matrix.php-versions }})
	runs-on: ubuntu-latest
	continue-on-error: ${{ matrix.experimental }}
	timeout-minutes: 3 # Successful runs seem to take ~1 minute

	strategy:
	fail-fast: false
	matrix:
	php-versions: [ '7.4', '8.0' ]
	experimental: [ false ]

	steps:
	- name: Checkout code
	uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4

	- uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-versions }}
	tools: composer
	coverage: none

	- name: Get Composer cache directory
	id: composer-cache
	run: \|
	echo "::set-output name=dir::$(composer config cache-files-dir)"
	- name: Use composer cache
	uses: actions/cache@v4
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: \|
	${{ runner.os }}-composer-

	- name: Tool versions
	run: \|
	which php
	php --version
	which composer
	composer --version
	which jq
	jq --version

	- name: Install dependencies
	run: \|
	# Install stuff ignoring platform reqs.
	composer install --ignore-platform-reqs
	# Remove stuff we don't need here that fails some platform reqs.
	# This will complain if we missed any.
	composer remove --dev automattic/jetpack-codesniffer

	- name: Run the unit tests
	run: \|
	composer test-php

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