test: Add inspections for null pointer and void function usage #144

	name: phpstan

	on:
	workflow_dispatch:
	push:
	paths:
	- '**.php'
	- '*.neon'
	- '*.xml'
	- '*.xml.dist'
	- '.github/**.yaml'
	- '.github/**.yml'

	jobs:
	phpstan:
	name: phpstan
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: '8.0'
	extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick
	coverage: none

	- name: Cache composer dependencies
	uses: actions/cache@v4
	with:
	path: vendor
	key: composer-${{ hashFiles('composer.lock') }}

	- name: Run composer install
	run: composer install --no-interaction --prefer-dist --ansi -v

	- name: Run phpstan
	run: composer phpstan

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