Fix mistake in docs for `keys` filter #2584

	name: "Documentation"

	on:
	pull_request:
	push:

	permissions:
	contents: read

	jobs:
	build:
	name: "Build"

	runs-on: ubuntu-latest

	steps:
	- name: "Checkout code"
	uses: actions/checkout@v4

	- name: "Set-up PHP"
	uses: shivammathur/setup-php@v2
	with:
	php-version: 8.2
	coverage: none
	tools: "composer:v2"

	- name: Get composer cache directory
	id: composercache
	working-directory: doc/_build
	run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT

	- name: Cache dependencies
	uses: actions/cache@v4
	with:
	path: ${{ steps.composercache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: ${{ runner.os }}-composer-

	- name: "Install dependencies"
	working-directory: doc/_build
	run: composer install --prefer-dist --no-progress

	- name: "Build the docs"
	working-directory: doc/_build
	run: php build.php --disable-cache

	doctor-rst:
	name: "DOCtor-RST"

	runs-on: ubuntu-latest

	steps:
	- name: "Checkout code"
	uses: actions/checkout@v4

	- name: "Run DOCtor-RST"
	uses: docker://oskarstark/doctor-rst
	with:
	args: --short
	env:
	DOCS_DIR: 'doc/'

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