Add renovate.json #18

	name: CI
	on: push
	jobs:
	tests:
	name: Tests
	runs-on: ubuntu-latest
	services:
	postgres:
	image: postgres:14
	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	- name: Setup Ruby and install gems
	uses: ruby/setup-ruby@v1
	with:
	bundler-cache: true
	- name: Setup Node
	uses: actions/setup-node@v1
	with:
	node-version: 16.9.0
	- name: Setup test database
	env:
	RAILS_ENV: test
	DATABASE_HOST: postgres
	DATABASE_USER: postgres
	run: \|
	bin/rails db:create
	bin/rails db:setup
	- name: Run tests
	run: bin/rails test

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