Declare argument of ProxyCacheWarmer::warmUp nullable #190

	name: PHP Coding Standards

	on:

	push:
	branches:
	- main

	pull_request:

	schedule:
	- cron: '20 16 * * SUN'

	jobs:

	php-cs-fixer:

	name: PHP Coding Standards
	runs-on: ubuntu-latest

	steps:

	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup tools
	uses: shivammathur/setup-php@v2
	with:
	php-version: 8.2
	tools: cs2pr
	coverage: none

	- name: Install Composer dependencies
	uses: ramsey/composer-install@v2

	- name: Cache PHP Coding Standards
	uses: actions/cache@v3
	with:
	path: var/.php_cs.cache
	key: php-cs-fixer-${{ github.sha }}

	- name: Run PHP Coding Standards
	run: vendor/bin/php-cs-fixer fix --dry-run --format=checkstyle \| cs2pr

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