Bump actions/checkout from 3 to 4 #178

	name: Check & fix styling

	on: [push]

	jobs:
	php-cs-fixer:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	with:
	ref: ${{ github.head_ref }}

	- name: Run PHP CS Fixer
	uses: docker://oskarstark/php-cs-fixer-ga:2.19.0
	with:
	args: --config=.php_cs.dist --allow-risky=yes

	- name: Commit changes
	uses: stefanzweifel/git-auto-commit-action@v4.15.4
	with:
	commit_message: Fix styling

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