Update UPGRADE.md #272

	on:
	pull_request:
	paths-ignore:
	- 'docs/**'
	- 'README.md'
	- 'CHANGELOG.md'
	- '.gitignore'
	- '.gitattributes'
	- 'psalm.xml'

	push:
	branches:
	- master
	paths-ignore:
	- 'docs/**'
	- 'README.md'
	- 'CHANGELOG.md'
	- '.gitignore'
	- '.gitattributes'
	- 'psalm.xml'

	name: mutation test

	jobs:
	mutation:
	name: PHP ${{ matrix.php }}-${{ matrix.os }}

	runs-on: ${{ matrix.os }}

	env:
	extensions: memcached

	strategy:
	matrix:
	os: ['ubuntu-latest']
	php: ['8.3']

	steps:
	- name: Install service memcached
	uses: niden/actions-memcached@v7

	- name: Checkout
	uses: actions/[email protected]

	- name: Install PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php }}
	ini-values: memory_limit=-1
	coverage: pcov
	tools: composer:v2, pecl

	- name: Determine composer cache directory
	run: echo "COMPOSER_CACHE_DIR=$(composer config cache-dir)" >> $GITHUB_ENV

	- name: Cache dependencies installed with composer
	uses: actions/cache@v2
	with:
	path: ${{ env.COMPOSER_CACHE_DIR }}
	key: php${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}
	restore-keys: \|
	php${{ matrix.php }}-composer-

	- name: Update composer
	run: composer self-update

	- name: Install dependencies with composer
	run: composer update --prefer-dist --no-interaction --no-progress --optimize-autoloader --ansi

	- name: Run infection
	run: \|
	vendor/bin/roave-infection-static-analysis-plugin --threads=2 --ignore-msi-with-no-mutations --only-covered
	env:
	STRYKER_DASHBOARD_API_KEY: ${{ secrets.STRYKER_DASHBOARD_API_KEY }}

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