Add doctrine/lexer v3 compatibility #1390

	name: Accessibility (a11y) Tests

	on:
	pull_request:

	jobs:
	a11y_tests:
	strategy:
	fail-fast: false
	matrix:
	php-version: ['7.2']
	node-version: ['12.5']
	actions:
	-
	name: Run pa11yci
	run: npm run a11y:ci

	name: ${{ matrix.actions.name }}
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	# see https://github.com/actions/starter-workflows/blob/main/ci/node.js.yml
	-
	name: Use Node.js 12.5
	uses: actions/setup-node@v1
	with:
	node-version: ${{ matrix.node-version }}
	coverage: none
	- uses: shivammathur/setup-php@v2
	with:
	# test the lowest version, to make sure checks pass on it
	php-version: ${{ matrix.php-version }}
	extensions: json, mbstring, pdo, curl, pdo_sqlite
	coverage: none
	- name: Install dependencies
	run: \|
	sudo composer self-update -q
	sudo COMPOSER_MEMORY_LIMIT=-1 COMPOSER_PROCESS_TIMEOUT=60 composer update --prefer-dist --no-progress
	./bin/console bolt:info --ansi
	npm set progress=false
	npm ci
	- name: Prepare environment
	run: \|
	# build assets
	npm run build
	sudo chmod -R 777 config/ public/files/ public/theme/ public/thumbs/ var/
	# prepare web server for e2e tests
	./bin/console doctrine:database:create
	./bin/console doctrine:schema:create
	./bin/console doctrine:fixtures:load --group=without-images -n
	./bin/console server:start 127.0.0.1:8088
	# test if web server works
	sleep 3
	wget "http://127.0.0.1:8088/bolt/login"

	- run: ${{ matrix.actions.run }}

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