Resolve the "Property is never assigned null so it can be removed from the property type" error detected by PHPStan #187

	name: Test with php-src

	permissions:
	contents: read

	on:
	push:
	pull_request:
	workflow_dispatch:
	schedule:
	- cron: '0 9 7,14,21,28 * *'

	jobs:
	test:
	name: Test with php-src
	runs-on: ubuntu-latest
	strategy:
	matrix:
	php: [ '8.1', '8.2', '8.3', '8.4', '8.5', 'master' ]
	steps:
	- uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
	- name: Run docker compose
	shell: bash
	run: \|
	cp .github/workflows/php-src-${{ matrix.php }}.dockerfile Dockerfile
	docker compose up -d
	sleep 30

	- name: Run testing
	shell: bash
	run: \|
	sleep 30
	docker compose run web sh -c "cd / && composer test"

Provide feedback