Update PHPStan level to 6 and fix violations and bump minimum PHP to 7.2 #7

	name: PHP Unit Testing

	on:
	push:
	branches:
	- main
	# Only run if PHP-related files changed.
	paths:
	- '.github/workflows/php-test.yml'
	- '**.php'
	- 'phpunit.xml.dist'
	- 'composer.json'
	- 'composer.lock'
	pull_request:
	branches:
	- main
	# Only run if PHP-related files changed.
	paths:
	- '.github/workflows/php-test.yml'
	- '**.php'
	- 'phpunit.xml.dist'
	- 'composer.json'
	- 'composer.lock'
	types:
	- opened
	- reopened
	- synchronize

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: ${{ github.ref != 'refs/heads/main' }}

	jobs:
	php-test:
	name: PHP
	runs-on: ubuntu-latest
	timeout-minutes: 20
	steps:
	- uses: actions/checkout@v4

	- uses: shivammathur/setup-php@v2
	with:
	php-version: '8.2'

	- name: Validate Composer configuration
	run: composer validate

	- name: Install Composer dependencies
	run: composer update

	- name: PHPUnit Test
	run: composer test

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