[BUGFIX] Avoid notices and use null coalesce #1598

	name: Docs

	on:
	push:
	branches:
	- "main"

	env:
	# see https://github.com/composer/composer/issues/9368#issuecomment-718112361
	COMPOSER_ROOT_VERSION: "dev-main"

	jobs:
	docs:
	runs-on: ubuntu-latest
	steps:
	- name: "Checkout"
	uses: actions/checkout@v4

	- name: "Setup PHP"
	uses: shivammathur/setup-php@v2
	with:
	php-version: 8.2
	coverage: none
	env:
	COMPOSER_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	# see https://github.com/ramsey/composer-install
	- name: "Install Composer dependencies"
	uses: ramsey/composer-install@v3

	- name: "Install rule doc generator"
	run: composer require symplify/rule-doc-generator:^12.1 --with-all-dependencies

	- name: "Generate documentation"
	run: "composer docs:generate"

	- name: "Uninstall rule doc generator"
	run: composer remove symplify/rule-doc-generator

	- name: "Commit documentation"
	uses: stefanzweifel/git-auto-commit-action@v5
	with:
	commit_message: '[DOCS] Generate documentation'
	commit_options: '--no-verify --signoff'
	branch: "main"
	push_options: '--force'
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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