[Core] Resolve installation failure #207

	name: "Validate"

	on: [ "pull_request" ]

	jobs:
	linting:
	name: "Linting (PHP ${{ matrix.php-versions }})"
	runs-on: "ubuntu-latest"
	strategy:
	matrix:
	php-versions: [ '8.0', '8.1' ]
	steps:
	- name: "Checkout"
	uses: "actions/checkout@v3"
	- name: "Setup PHP, with composer and extensions"
	uses: "shivammathur/setup-php@v2" # https://github.com/shivammathur/setup-php
	with:
	php-version: "${{ matrix.php-versions }}"
	extensions: "mbstring, xml, ctype, iconv, intl, gd"
	tools: "composer:v2"
	- name: "Get composer cache directory"
	id: "composer-cache"
	run: 'echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT'
	- name: "Cache composer dependencies"
	uses: "actions/cache@v3"
	with:
	path: "${{ steps.composer-cache.outputs.dir }}"
	key: "${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}"
	restore-keys: "${{ runner.os }}-composer-"
	- name: "Validate composer"
	run: "composer validate"
	- name: "Install Composer dependencies"
	run: "composer install --prefer-dist --no-progress --no-suggest --optimize-autoloader"

	# Ensure our code looks proper
	- name: "Lint the code"
	run: "make lint"

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