Decrease celery concurrency because Heroku says it is using too much … #678

	name: Lint and Test code

	on:
	pull_request:
	schedule:
	# run once a week on early monday mornings
	- cron: '22 2 * * 1'

	jobs:
	test:
	runs-on: ubuntu-20.04
	env:
	DJANGO_SETTINGS_MODULE: config.settings.test
	services:
	postgres:
	image: postgres
	env:
	POSTGRES_PASSWORD: postgres
	POSTGRES_DB: dear_petition
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	ports:
	- 5432:5432
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: '3.12'
	cache: "pip"
	cache-dependency-path: "requirements/**.txt"
	- uses: actions/setup-node@v4
	with:
	node-version: 18
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Cache Docker build
	uses: actions/cache@v3
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-docker-${{ hashFiles('Dockerfile') }}
	restore-keys: \|
	${{ runner.os }}-docker-
	${{ runner.os }}-
	- name: Run eslint + format
	run: \|
	npm i
	npm run lint
	npx prettier --check .
	- name: Build Docker Deploy Image
	uses: docker/build-push-action@v5
	with:
	builder: ${{ steps.buildx.outputs.name }}
	load: true
	tags: dear-petition
	target: deploy
	cache-from: type=local,src=/tmp/.buildx-cache
	cache-to: type=local,dest=/tmp/.buildx-cache
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip wheel
	pip install -r requirements/local.txt -r requirements/production.txt
	- name: Run Tests
	run: pytest
	env:
	DATABASE_URL: postgres://postgres:postgres@localhost:5432/dear_petition

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