Bump vitest from 0.33.0 to 2.0.3 in /frontend #661

	name: Backend

	on: [push]

	jobs:
	backend:
	name: Backend test, lint and format
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.11
	uses: actions/setup-python@v3
	with:
	python-version: 3.11
	- name: Install dependencies
	run: \|
	cd backend
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	- name: End-to-end test
	run: \|
	set -x
	cd backend
	CORS_ORIGINS='' MEDIA=.. flask --app src/app.py run &

	TRIES=0
	while [[ -z "${DIR_LIST:-}" ]] && [[ "$TRIES" -le 120 ]]
	do
	DIR_LIST=$(curl 'http://127.0.0.1:5000/?dir=' \|\| true)
	((++TRIES))
	sleep 0.5
	done

	echo "$DIR_LIST" \| grep '{"name":".gitignore","type":"file","url":"/.gitignore"}'
	echo "$DIR_LIST" \| grep '{"name":"backend","type":"directory","url":"/backend"}'
	- name: Lint
	run: \|
	cd backend
	pylint $(git ls-files '*.py')
	- name: Format
	run: \|
	cd backend
	black . --check

Provide feedback